I got my MP-200 today, and tossed it in my Sony PS-X555ES. I had time to listen only 1&1/2 tracks of Talking Heads' Speaking in Tongues album, cause my girlfriend had to go to sleep.
Neat and well packed, easy to take out from box (some carts are really hard to unpack for some reason), very easy installation cause of the sturdy and simplified (yet effective) construction.
First impressions are amazingly positive. There is no single irritating thing in the sound, no hint of mistracking and the surface noise is low as advertised.
The sound is warm, round and involving without being dull or boomy. Based on such a short sample I shouldn't say too much yet, but the way "Making Flippy Floppy"'s challenging vocals were handled was just amazing.. not to mention the percussions!
The cart seems to keep everything nicely together and rhytmic. Let's see more tomorrow before I make too hasty conclusions. But these truly were my first impressions out of the box. I'm really surprised and taken by the sound, I hope longer listening sessions won't make me eat my words
Tomorrow I'm off to buy some Coltrane and Davis, so let's see how Nagaoka handles Jazz (my collection is mostly rock, pop and metal).