My experience using Boost.Space has been smooth so far. I'm somewhat familiar with using Make.com so it wasn't hard to set up some automations and boost.space offers the exact same Make.com experience in that respect.
I'm very interested in using the central database aspects of boost.space however still getting my head around this.
The interface is polished, although I can imagine that many would find it confusing and probably the entire boost.space and make.com experience overwhelming - despite the various videos and walkthroughs (which are helpful).
Ultimately, I'm happy with what I have 👍