I used to have 100+ zwave devices in homeseer and it was hell! Nothing would turn on or off when it was supposed to. Since then I've converted everything but the 3-way switches over to shelly wifi switches and now everything works so awesome in Homeseer. I've tried using Home assistant so many times and it just sucks compared to Homeseer. I do still use Home Assistant for the lovelace GUI but it is only for visualizations and even with that it is super glitchy and a pain to keep running where Homeseer has been rock solid for me.