Yeah, unpleasant is a pretty good description, which is NOT the way I like to start a nice meal. There were people getting downright growly and the host staff were none too gracious either. Part of the trouble is that the Radiance doesn't have a suitable waiting area nearby. We had one incident that was actually pretty laughable, assuming a "lost in translation" factor. The hostess bluntly told us to "go stand in the corner" - pretty sure she didn't realize how rude she sounded. We got a good giggle out of it.
I really think it's just a "luck" thing, although the Freedom-class ships were purpose-built with a MTD set up whereas the Radiance-class ships were not. I also think (and this is just a "conspiracy theory" on my part) that they try to keep you at the same MTD table each night so that the wait staff have a shot at developing a relationship and getting extra tips on the last night, like they do in Traditional dining. I know the waiters we talked to (on both LOS and ROS) said they would have preferred to be assigned to Traditional although they stopped short of saying why.
Part of our problem was caused by the fact that we met some nice people waiting in line on our first night and buddied-up with them for dinner. Therefore the "records" showed us as a party of 4. The next two nights the host staff kept trying to correct our request for a table for 2 and make us wait for the rest of our party, which didn't exist. Things would have worked a lot better if they would simply LISTEN to what they're being asked/told and accommodate it from there.