Amazing pack; even if it wasn't for the things it's innovated like the stage destruction for a game mode the public hadn't even gotten to play until a few days before the packs release, this map would still be amazing in my eyes.
I didn't play the tutorial myself but I did see gameplay of it, and from what I can judge it does an excellent job at teaching the player how to actually utilize their breakneck speed kit. I really hope someday in the future something can be done so that an SST tutorial stage would be possible; but that's wishful thinking and digressing in general.
Keeping the actual aesthetic feel of the in game tutorial was (a very easy choice to make) but a very pleasing one to look at, and not a single thing about the XSonic specific setups sticks out as off looking to me in the aesthetic.
I haven't seen maybe well thought out or mapped just "Lounge" maps on SRB2 in a long time despite having started playing this game around 4 years ago. The mode is slept on; just being able to log in and relax with friends, and for me at the very least Station-X brings exactly the thing I've thought was missing from casual hangout servers for a long time (and fixes a lot of the gripes I have with a good amount).
It's pretty open and fun to roam around in with practically every character, it's multipurpose in the sense of you could also use it as an SST stage, and my last, MAJOR praise towards such a minor thing:
The music toggles in the DJ building.
I can't stand listening to the same thing over and over again for an extended period of time, and I guess Boing couldn't either, because man did he think of that with in-game SENSORS for OTHER TRACKS.
Even aside Station-X, Thorndyke mansion got me so giddy running around it remembering scenes from the anime and even seeing Chris and co. I can also really appreciate the GSOptimenu usage in ALL of the pack. It makes hosting it no matter the mode so much easier.
I wish I could give this addon a four and a half because I WOULD if that were an option (or I'm just stupid and it is) as the things I don't mind are minor at best.
Part of me wishes there was more to run around and find in each map. Station-X has the subway and the music room but that's pretty much it asides from a few locations you can just stumble on by walking around. The only other thing I can name of having to search to find inside of these levels was Yamcha in a crater on the Cell Games Arena stage, and while it was funny I'm sad the little secrets ended there.
I also to this day still wish that at least some of the buildings in Station-X had stage destruction properties when being crashed into at a high speed, but as I said before that's pretty niche. (Though I can't help but imagine what destroying the inside of a building with a ringburst would be like..)
The last thing that comes to mind is something that's been addressed already is the lack of more than 4-5 music options, so I kept that out.
All in all? Much good.