I will give my pitch that I prefer separate components. Inverter/charger usually has three components that can fail when you include the transfer switch. Too many posts of one section fails and you replace the whole thing.
When my Prosine burned up the transfer switch would not pass power and I was stuck. I decided to get a separate inverter and separate transfer switch. I have a separate charging system of mostly solar and a converter in reserve. Much easier if anything fails to replace the one item or continue using what does work.
If charging on generator I always recommend replacing a WFCO. PD or IOTA is way better. No PowerMax either unless you want a manually controlled system.