I’m posting my experience without much new information except the relatively minor issues I had with the Pentair High Power Wireless (HPW) Link Kit but I thought it might help to gather some of the URLs into a newer thread that might inspire someone else to upgrade to IntelliCenter.
Virtually...
The recs in this sticky have been foolproof for me over the past 5.5 years.
https://www.troublefreepool.com/threads/how-do-i-use-chlorine-in-my-spa-or-pool.9670/