<Edits: add details, link, fix typos, etc.>
I’m a hardware developer (EE and ME, work in the medical device space) and have tried most of the hubs/protocols/devices over the last 15 years. From my perspective, the missing link in discussions such as this is that the desire for reliable control recurs, yet minimal discussion exists which highlights the rock-solid, 100% reliability (in my implementation) of the Lutron Caseta dimmer/plug option for lighting and blinds when driven by a Caseta Pro Hub. I think the discussion around Caseta is lacking in these forums because support for Caseta is lacking in Vera. By itself (no Vera, etc.), the Caseta platform is as reliable as can be in my experience. I have ~30 Caseta dimmers and sockets in my house and my lighting scheme is all controlled by the Caseta hub. The Caseta app is in my opinion perfect, as it has never had a problem and has controlled my home lighting scheme for over 3 years straight. The app talks to the hub over the net, but the hub controls the lighting flawlessly irrespective of if it has an internet connection. Further, the Caseta wall switches and dimmers look very professional as do the Pico remotes, which when wall mounted are indistinguishable form an actual dimmer aside from the fact they have a 5th button in the center and sell for only $15 each. They are available in both scene controller (2 or 4 similar buttons) configs as well as individual device dimmer configs. The Pico remote batteries last 10 yrs (I haven’t replaced a single battery in my 3 yr old ones yet) and I have never lost a pairing of any of my 30+
switches/dimmers/remotes in over 3 years. It just works. Of the easily >$10k I have spent on home automation, my investment in Caseta is by and far the best decision I have made in terms of building up a collection of devices that are reliable and absolutely frustration free.
Pico remote overview:
http://www.lutron.com/en-US/Products/Pages/Components/PicoWirelessController/Models.aspx
Enter Vera: To get some more control, I.e. integration of cheap z-wave temp. sensors etc. into my Caseta setup, I have a VeraPlus using the RadioRa2 plugin which with good response time (<1000 ms) reads/writes setpoints from/to my Caseta Pro 2 hub. With the Vera I have around 20 z-wave sensors which l use to monkey with the Caseta setpoints, e.g. I have monoprice z-wave 4-way motion detectors in the garage, under eaves, bathrooms for Hum, sideyard to detect if the dog is over there, etc. to do things like switch on a fan when a 4-way says the temp is getting warm in the attic or if the ecobee3 says it is warm via a Vera plugin that does work well so far. But I routinely have devices that are not responding, and the 4-way devices are notorious for eating battery in 2 months then upon battery replacement I have to delete/re-add the device to get it to work again then I have to mess with sometimes several scenes to get that battery-replaced sensor to do its thing again. I have kept hoping the z-wave stuff would start working more reliably, but I usually have some substantial fraction of stuff not working correctly with the Vera.
For fan control, (I have 3 box fans sitting on top of the screen of three half-open skylights with an extension cord on the roof for power), I use tp-link hs110 switches which are cheaper than z-wave switches (ordered 6 moretoday at $10 each for Prime Day) and they handle inductive loads at up to 10A which is perfect for fans. Vera has a plugin for these, but it is a loose communication that does not verify the setpoint change, it merely sends the command and one hopes it is received (same as UDP vs. TCP if you know what I mean).
Some quick reading indicates the Caseta integration and also TP-link integration is better with Hubitat than with Vera. Specifically, Vera does not support Caseta Pico remotes, which are by far my preferred remote type. Thus I use Z-wave minimotes with Vera which are a continuous source of frustration. If Hubitat supports Pico remotes, which it is said to do, that is a game changer for me as that would allow me to get rid of my last remaining minimotes. I need to figure out Reactor still, and to get several z-wave devices working again with Vera-- I’m thinking to invest that time into messing with Hubitat instead.
This reply may be long-winded, but hopefully it gives the new Vera management some ideas what might be important to users.
Case in point: I just picked up a minimote and had to press a button 3 times and wait ~20s for the overhead fan to come on since the z-wave remotes are always a problem in my experience. In contrast, I have at least 20 Caseta Pico remotes around the house, and have never experienced a perceptible delay in 3+ years of use. I keep the minimote plugged in continuously to a USB charger-- If the battery runs out (2 wk lifetime), I have to delete and re-add the device and re-create scenes for it. If Hubitat works with Caseta and its line of Pico remotes as well as forum posts describe therein, I may finally be a happy home-automation camper. I’ll post a follow up after having some experience with Hubitat.