In my personal opinion, I keep security separate. It’s no fun when a troublesome device causes a delay or hang in your system, and the result is your alarm blasting at the worst possible time, but you cannot turn it off. That is just one of many reasons.
A Ring Alarm with @codahq ‘s excellent Unofficial Ring Integration is what I use now. This works perfectly, plus you get a fully backed up alarm system, with free cellular backup and no fees, but the option to have professional monitoring if you want. You can also then still use the Ring Alarm sensors in HE, and they respond just as fast as if they were directly paired with HE. It can also control the Ring siren and the Ring Hub can trigger HE based on its state.
