The Rectoverb is awesome but does the Recto thing. Go for it if that's the tone you want. I play a Roadster and a Soldano Decatone. I like the Recto sound quite a bit and contrary to what others say, it's great for fast metal and can be dialed in to sound pretty tight. Just takes some effort. Love the Soldano though. It's the secret weapon and remains my main amplifier.
Remember that the Rectoverb is 50W, same as the F50... So if the F50 is too loud, odds are the Rectoverb will be as well.
If you can hang with the 50W thing and you are used to playing and hearing Marshalls, scope out the Stiletto Ace. They are much more "Marshall" style and sound than the Rectos. They are also 50W and have great clean, bluesy, and high gain sounds. Great for rock.
Personally, I'm not a fan of the Stiletto series. Not even the Ace. But others on here really love it and it might be more what you are looking for as far as sound and simplicity. It's very easy to dial in.
Aces are relatively new however, so finding a used one may be a little tough. You can also search for series I Stiletto Deuce and Trident amps. Both can be switched down to 50W and can be found fairly cheap used.
The F series is great and now that they are discontinued, you can probably find an F50 for a good price. Decent cleans, good crunch, and the contour mode for heavier stuff.
Give us more of an idea of the sound you're after and we can help some more.
Oh, and you can use your delay in the loop just fine.
Good luck!