Just played a few maps, and my initial impressins are very positive. It's what you'd expect really, but of course it also depends heavily on the maps.
I'm a bit dissapointed that these modes haven't got maps for all difficulties on the stock core songs, but maybe that'll come later.
One area where the devs should take note from the Audica team, is how to indicate where the next block is gonna appear, if it's out of your field of view. On a high FOV HMD it's less of a deal, but with CV1+TPcast (it eats are few degrees) it's quite challenging as it is now.
I have no problem playing on the Rift S. It's not like you're constantly spinning and tangling your cord, at least on the Expert and below songs (Can't play Expert+ yet). The turns are very controlled, and they don't continue in the same direction. Paying attention to the floor helps you see where the blocks are going to be coming from.
I am also annoyed by only having certain songs have 360 mode, and of those, most are one difficulty only, reducing the amount of songs I enjoy playing even further.
Wired can work if you have it set up right, though it means creative cabling. My cables go from my PC, through a loop screwed into the wall, then to a loop screwed into the ceiling towards the rear of my play area. Standing in the centre, it gives fairly good 360 degree movement with no entanglements.
Anyway, I found this thread when trying to find out if BS was going to add all difficulties to the 90/360 enabled songs. Can't find any info though, which is a shame. I love the game and use it as part of a workout routine, but my playlist is limited to the songs I enjoy. Only two of those have 90/360 at the difficulty I use, and the others which offer that level are just horrible... I can't work out to music I don't like listening to. (The 90 degree songs offer a harder workout if you plant your feet, given the torso twisting involved.)