It is a bit buggy - but it sounds good enough that I can deal with the growing pains. I've also emailed with the developer, and he's very responsive/friendly/helpful. They release updates pretty often as well.
But yeah, I would guess 1 gig may be too little to effectively use memory play without straining your machine a bit.
But yeah, I would guess 1 gig may be too little to effectively use memory play without straining your machine a bit.