Real owners rate these about evenly: 66% of 68 Boss RV-6 Reverb owners recommend it, vs 61% of 69 for the Keeley Compressor Plus.
Verdicts aggregated from Reddit, enthusiast forums, and YouTube owner comments — affiliate reviews excluded. Sample sizes differ; judge accordingly. How we score
“The Reverb is a gem. That pedal has a lot of settings to get some really cool sounds out of it.”— neverw1ll on Reddit
“Big fan of RV-6. When I got it I thought it was “pretty good” but after a couple of years I love it.”— ziganaut on Reddit
“Had the RV-6 at one point, but found it too metallic. All Boss reverbs are like that to my ears though. Modulated is the best algo on the RV-6, but it seriously pales in comparison to Mercury7 modulation.”— KickFragrant7836 on Reddit
“The Keeley compressor has been on my board for a long time and it works well for me. I switch guitars between a tele and a es-135, so the simple single coil/humbucker toggle switch is a very useful feature.”— Sensitive-Muscle2606 on Reddit
“I'll say the only reason I left the Keeley for the Wampler was because the Wampler comes in mini... Both are great. Love the pickup switch on the Keeley too”— chancesteward on Reddit
“My compressor Plus buzzes like crazy with my single coil guitar and it drives me nuts. I find if you turn down the sustain knob it helps, but having extra sustain is kinda the point.”— MedicineforMadness on Reddit
Real owners rate these about evenly: 66% of 68 Boss RV-6 Reverb owners recommend it, vs 61% of 69 for the Keeley Compressor Plus.
Owners point the Boss RV-6 Reverb at players who want one reverb for standard hall, room, plate and spring sounds and expect to run it always-on, and anyone who wants shimmer occasionally and is willing to roll the tone knob back to get it.
Owners point the Keeley Compressor Plus at players switching between single-coil and humbucker guitars on the same board, and anyone who wants an always-on compressor that can be dialed back with a blend control.
The most-cited downside of the Boss RV-6 Reverb is a minority hear the algorithms as digital or metallic, competent rather than inspiring. For the Keeley Compressor Plus, it's audible hiss and broadband noise, by far the most common owner complaint.