I've got a bunch of Feit wi-fi smart bulbs and non-smart bulbs from Menard's.
I couldn't give you a count. But it's in the dozens. All but one have been okay so far, some for a few years.
I have one smart Wi-Fi bulb in my bedroom that's currently on the fritz. It's doing things like turning on and off by itself. Made a loud "click" (Breaker, thermal protection?) and turned off, and wouldn't work until the actual lamp base was turned off/on to power cycle it. And it's also doing weird things like not responding to the app, and just leaving itself on at 1% power.
It's in a traditional lamp base with a shade on a night stand, so shouldn't be any thermal/overheat issues with it.
From what I've saved in money so far over buying more name-brand LED's and smart/wi-fi bulbs, I'm not too salty about it.
I just need to toss it, and put in another new one, I'm just too lazy to deal with the few minutes of wrangling a new bulb on the app to get it registered. Since the smart bulbs all run on 2.4gHz "old" wi-fi, getting them to ignore the simulcast 5gHz SSID in my house is kind of a pain, but I've figured out how to get the bulbs to register through their built in access point mode (Amazed at a semi-disposable light bulb has a wi-fi access point in it? Minor future-shock), download the SSID for the home network through the app on my phone and the passcode, then work from there.