There's a lot that you can do with the different delays....quite a lot. My favorites right now are the DM-2 model (the real one is my favorite delay pedal that I've actually owned) and the Dual Delay with settings somewhat similar to something Leon Todd showed at some point. IIRC, he called it a circular delay.
Hot take: I don't like reverb, as a rule. Almost every reverb device, pedal, or plugin I've used has really pissed me off. There's always this HF metallic sounding "flutter echo" that drives me nuts. Sadly, the FAS reverbs are not exempt from this. So, personally, I'd rather save the DSP and just not use it. If I actually need it for some sound, I'll buy whatever spring reverb pedal my LGS has and put it in front of the fractal...whatever it is, it won't sound worse than anything else to me.
Yes, I understand they're kind of necessary for mixing, at least some of the time. I have ways to deal with that. But, after using (at different points in my life) a real EMT plate, Super Reverb springs, Bricasti, Lexicon, Fabfilter, Valhala, and a bunch I've forgotten about...I just don't care about the details anymore. Pick one. Turn it down to where you don't notice it. Move on.
I have had some luck with the Room section of the Cab block (with diffusion and damping turned up a decent bit), and I'm experimenting with a farfield/room IR (which is aggressively filtered a la the Abbey Road reverb technique and mixed in pretty quiet) ... and I'm liking that sound. So...if you call that a room reverb, it's my favorite for guitar sounds right now. But, it'll probably change. The HF flutter echo is still there, but it's enough in the background that it doesn't drive me up the walls.
