We do indeed use Enable & Fusion.
My experience of them is mixed, I have to say. There are many great things about both beyond the obvious integrations; client portal, use of DFMs, low cost, wrapper choice etc etc.
On the flip side, I find the site is often really slow, has obvious bugs and in some cases is just appallingly coded. For example, there is no scaling so when looking at anything in Chrome, it uses at best, half the available screen space. This to me is just dumb and is one of those things that irritates me way more than it should!
If they thought about the presentation a bit more and made the user interface better, it would really help.
I hope that helps a little. If you want to ask anything further, please feel free to DM me.
I will DM you shortly as i have lots of questions