I own two. I like to use synths for what I feel they do different and in the esq-1's case that's the interesting non-saw,square,tri waveforms it has, but through an analog filter. The hi frequency of it's more complex waveforms is grainy from it's low bit depth, but smoothed out from that real analog filter gives pleasing texture for days. It really excels at bells, strings, and brass. Not bad at bass, but it's kind of a sqwuacky bass that has good character around the 200 hz range but just not real full below that. I bought both at seperate times a few years ago, one for $60 and the other for $100. Seem to be worth more than that now.
The memory battery is dead in one, and ive read it has to be a special one soldered in place. Haven't worried about that too much because I have memory carts, but I do wonder if not changing it will eventually cause death by battery leakage to the synth. What do you guys think about that?
oh yeah, don't worry about menu diving, it's more of a menu snorkel.