I guess this topic is really "neither hear nor there", as the MX series is more of a synthesizer than an arranger. But I was in a music store today and there just happened to be an MX61 there, and while some of the sounds were nice, there were a few disappointing surprises.
First of all, the keyboard feel did not seem any better than the PSR-E463, which the store also had on display, so I could compare them. Now, the E463 key feel is not bad, but there has been some discussion on this forum about how the key feel of the E400 series seems to have degraded after the E433. I would have expected a synth like the MX61 to be better.
And secondly, I tried some of the choir sounds, and these sounded like they were sampled from an '80's Casiotone! I really would have expected more, and I bet a keyboard like the PSR-S670, which doesn't cost that much more, has a better choir sound. I say this because my PSR-E433 has a better choir sound!
Maybe I was doing something wrong, or something just wasn't set properly? Anyone else have experience with these MX keyboards?