I installed my Lutron Hub today: ($80 shipped)
https://www.amazon.com/Caseta-Wireless-Smart-Bridge-L-BDG2-WH/dp/B00XPW67ZM
I thought it was going to be Wink-sized, but the entire hub fits in the palm of your hand, super tiny! Note that it is Ethernet-only (they do sell range extenders, if needed, although I didn't have any problems getting it to talk to anything in my house). It supports up to 50 Caseta devices (Caseta in-wall dimmer/switch, Pico remote, Pico Remote for Audio, Caseta Plug-in Dimmer, Shade, plus Honeywell Thermostat, Works with Nest, Carrier Cor/Wi-Fi Thermostat, ecobee3/Smart Si Thermostat, Sonos, and Shade Remote). It has broad integration as well (Amazon Alexa, Apple HomeKit, Google Assistant, etc.). I specifically bought it to use with my Amazon Echo system & to break away from Nest. Setup was super easy:
1. Plug Hub into Ethernet into router's switch ports
2. Plug Hub into Power
3. Download Lutron Caseta app & sign up for an online account
4. Auto-scan, auto-find, auto-update the hub (~5 minutes) & also press the button on the Hub to pair
5. Authorize location access (for time-of-day scheduling & geofencing)
6. Add devices by holding the off switch for 10 seconds (until all of the LED's rapidly blink), then give them a name/location. Their list is quite extensive & also offers customization.
Response time is excellent, roughly half a second. It's almost realtime to the point where it's not annoying at all. Next was to integrate Alexa:
1. Add Lutron Caseta smarthome skill & link your account
2. Scan for devices (~20 seconds)
3. Rename as necessary
4. Create groups as necessary
Alexa integration bumps response time up to a full second. Still feels faster than Wink, regardless. Also, the 1-second response time not annoying, because you're not pressing a button & expecting an instantaneous response, you're verbalizing it, so you speak, then it does its thing, and then Alexa says "okay", so it's very fluid. btw, I LOVE controlling groups verbally...it's amazing walking into or out of a floor of the house and having all of the lights on that floor turn on with a simple verbal command.
I will probably add some Alexa-friendly motion sensors for the hallways/stairs at some point. At this point, the only thing I have left on my Wink is my Schlage Century (Zwave) deadbolt (it's either that, or use a SmartThings Hub). I'm not taking the Century when I move, so I'll put a Schlage Sense (Bluetooth) in my new door, which has their own brand of Wi-fi adapter (which natively works with Alexa & can support 2 locks, if you want one on your back door or wherever). The only other thing I really want to add is shades, but those are waiting until I move (been putting them off successfully for years, lol).