Some users have experienced issues with the three-way portamento switch not functioning correctly and timing inconsistencies, described as "AWFUL" build quality for early batches.

The MS-101's portamento doesn't operate during sequencing, affecting sequences both internally and when sent to a DAW.

A common issue is sequences automatically applying excessive swing, which requires manual removal.

Users have successfully synced the MS-101's filter LFO with BPM by connecting the LFO output from a MicroBrute to the filter CV input.

It's noted that the MS-101 can fill up internal memory when used frequently in live sets, prompting some users to own multiple units.

Functions well as a MIDI keyboard and CV controller, with versatility for live keytar performances.

Users note the MS-101's resonance and noise differ from the original SH-101, impacting sound authenticity at higher registers.

The Roland Aira Compact S-1 is considered stronger on capabilities and precision compared to the SH-01a, despite its small and menu-driven interface.

SH-01a is noted for its usability despite its small size, with four-voice polyphony, additional LFO waveforms, and a faster LFO cycle, differentiating it from the original SH-101.

Firmware updates are crucial for correct CV clock sync functionality, and Behringer's SynthTool can't be used with an open DAW.

Users successfully clock it via external sources, such as Korg SQ64 and RD-9, by adjusting settings to 4pp.

The sequencer allows playing sequences backward using Shift+Play, and buttons can restart sequences or repeat notes, enhancing jamming sessions.

The FM knob behaves like a filter when the frequency is killed and resonance is cranked, offering unique sweep sounds.

Owners appreciate the built-in keytar grip, facilitating live performance versatility.

Owners report that the MS-1's keybed quality rivals smaller-scale Fatars from brands like Sequential and Modal, offering a surprisingly solid build for the price.

Despite being a fraction of the original SH-101's price, it offers significant flexibility and sound quality.

Users experience difficulty with the glide control, which transitions sharply from no effect to excessive glide.