The PSRSQ16 was probably the biggest flop Yamaha has had with arranger keyboards. It was loaded with features, but very few people could ever figure out how to use them all. I sold a few and my next door neighboor actually still has his and every once in a while they ask me to come over and show them how to use it. It was an expensive keyboard but it clearly was not made with ease of use in mind. The sounds and styles were good for it's time, but not even close to what is available for just a few hundred dollars new today.
George Kaye
Kaye's Music Scene
Reseda, California