The R1 Reverb is an extremely capable BigSky alternative, especially for players who would rather have a smaller pedal with no screen but that still has all the power and possibilities that MIDI grants you. Since you can use a controller to access up to 128 different patches, you can have a huge library of reverb sounds while taking up a small space on your pedalboard. The R1 does not have as many reverb algorithms as the Strymon, but all the tweakable parameters allow you to craft nearly unlimited reverb tones anyways. I also prefer the Sustain feature on the R1 in comparison to Strymon's Freeze/Infinite Sustain for the simple fact that the notes you play after you freeze your sound still have the original reverb patch on them, as opposed to sounding completely dry.