Real owners rate these about evenly: 58% of 26 Boss RC-1 Loop Station owners recommend it, vs 60% of 15 for the Holy Grail Nano Reverb.
Verdicts aggregated from Reddit, enthusiast forums, and YouTube owner comments — affiliate reviews excluded. Sample sizes differ; judge accordingly. How we score
“RC-1 was more quiet than the RC-3, but indistinguishable from RC-5. I ended up using the RC-1 more because the RC-5 is a pain to set up for simple looping without tempo sync. I'd say go for it.”— jonslow1212 on Reddit
“I use an rc1 as my main looper for practicing and for playing on live streams. The rc1's visual loop display is extremely helpful and that's something the rc5 does not have.”— AxelAlexK on Reddit
“If you are looking to use it live, the stop/start functions seem a little clunky to me. I don’t have experience with others, but I’m hesitant to use it on stage for that reason.”— ZappVanagon on Reddit
“I have the nano but same... Spring always on. It was my first pedal and I don't think I've ever turned it off!”— dnlprn86 on Reddit
“Great simple reverb. If you’re looking for huge trails, etc. it’s not what you’re after but if you want an easy set and forget, solid sounding reverb it’s still hard to beat, especially for the used price.”— Palomar_Sound on Reddit
“good but quite plain isn't it and there are so many other pedals that cover this sound entirely plus more, dunno why someone would get this where there's so much better available.”— Thereminz on Reddit
Real owners rate these about evenly: 58% of 26 Boss RC-1 Loop Station owners recommend it, vs 60% of 15 for the Holy Grail Nano Reverb.
Owners point the Boss RC-1 Loop Station at first-time loopers who want to see where they are in the loop while learning to play in time, and practice at home, on live streams, or as a quick scratchpad for testing new pedals.
Owners point the Holy Grail Nano Reverb at players who want one reverb parked on the board and never touched again, and small combo amps with no reverb tank of their own.
The most-cited downside of the Boss RC-1 Loop Station is stopping takes a double tap and clearing takes a press and hold, which owners fumble in the middle of a song. For the Holy Grail Nano Reverb, it's limited range, with none of the long trails or ambient washes some players expect from a reverb.