love the sp-303⦠probably my favorite single-purpose computer!
i remember getting one 10 years ago because i read that madlib and panda bear used one, haha⦠it really gelled with me and i used it pretty consistently for years, made multiple releases using it solo (or with a four-track), used it with multiple bands⦠it was my main āinstrument,ā and learning how to use it was pretty intuitive.
as others have said, some onboard effects are surprisingly decent (filter+drive, ring mod, EQ, reverb, compression/ vinyl simulator), and others are pretty bad (distortion, radio-tuning, noise gen always hurt my ears.) the tempo-editing function makes everything choppy/ stuttering, like madlibās bass lines.
i also used it like an effects pedal, and played whatever i ran through it (usually mixer feedback + field recordings) in conjunction with the samples iād loaded onto it. i used this setup for years, it was really useful, playable, and it kept my setup small but sonically varied. i always triggered everything manually, never used the sequencer.
itās slightly quirky, has limited memory, plus i remember the filter+drive can self-oscillate to the point of the whole unit shutting off, which totally happened to me once during a show- in retrospect this actually led to a cool musical moment⦠also i had to repair a broken connection (the rca inputs on the board) on two separate occasions. i think the wire they used for that was super tiny and thin, so just replaced it with a stronger connection.
so itās kinda cheaply made, but i also carried it around in a cardboard shoebox on multiple tours, and thatās really the only problem iāve had, so for $200? totally worth it⦠i really stretched the use out of it, was a big part of my sound for a long time, plus itās really fun to play⦠it was basically my introduction to making āexperimentalā music.
(although i should say to people experiencing GAS: if youāve already had this kind of introduction, i wouldnāt say itās essential to get a sampler. the 303 just happened to come into my life at the right time.)
also it looks like the SD cards are much cheaper now than they were 5-10 years ago, thatās pretty cool.