I use my Google Home Minis to control a lot of things in my apartment, e.g. switching inputs on my tv, starting timers to do certain things after a specific amount of time etc. So far I use IFTTT, especially because I can use placeholders that can be passed to Home Assistant, e.g. I can use my Google Home to turn up my volume on the receiver through HDMI_CEC commands by just the amount I wish / tell Google Home.
Using IFTTT though is just a workaround for something that Home Assistant itself is not capeable of. With Home Assistant Cloud and the Google Assistant integration, I wish there was a way to setup phrases like in IFTTT with placeholders that directly link to my Home Assistant (ideally working better than IFTT and with less delay).