If you want a new pedal, we agree w/Mr. Block on the Boss. Solid, great sound. Wethinks there may be an RV-6 in the works?
The Line6 Verbzilla is a good one too, solid build, and part of the Tone Core series so you can buy 1-2 "bases" & power and then buy modules like their Space Echo, Echo Park, Verbzilla, etc. and plug in what one you want to use.
If you're willing to look for vintage gear, much better than the Boss Space Echo Pedal is, of course, a Roland Space Echo tape echo, but they're high-maint. The real nice piece was Roland's first attempt at a digital version of the tape echo, the Roland Digital Space Echo RE-3. Hard to find but worth the hunt. Possibly the best digital guitar reverb ever made. It is a rack unit and has mic and line input, "warmth" (chorus), reverb, plus echo intensity and repeat rates. But you can just turn up the reverb and leave the rest down, although once you hear the chorus, you'll end up adding a bit to a lot of that - same algorithms as the infamous Boss CE-300 Chorus unit.