I am considering getting the Xiaomi or Aqara DWS, PIR, temperature & humidity and switches. 1) is there any preferences between Xiaomi & Aqara for them to work with Smartthings Hub V3 (2018)? 2) there are several DH, which is the right one to use 3) what is the maximum devices ST V3. 0 (2018) can support? 4) Many discussion on Ver2 hub, it will work well with V3 too right? They're very cheap in price, I've seen many reported they work equally well if the pairing is done correctly directly to the hub Thanks in advance for helping