If you want, and have the space for room scale (which is more than you think you might, probably at least 2x2m to get something out of it), then the Vive is amazing. As others have already said, playing and demoing Space Pilot Trainer to your mates is amazing.
For seated experiences, and comfort, as you'll all already be aware, the Rift is miles ahead of the Vive. Another "lighthouse" for the Rift, and the touch controllers, and I'll never wear the Vive again presuming I can get the same experience with Steam games (i.e. SPT!).
One thing to note about room scale is that it is NOT a panacea of wonderfulness. By virtue of your house size, unless you have a warehouse free, you will be limited in your play area. This severely restricts your physical locomotion through any game space. In order to get around that, you need to have some sort of "gamepadesque" movement, which is nausea inducing, or be happy with the Vanishing Realms style teleport mechanic. So tbh you tend to end up with some largely static experiences where you warp, but then can move around a couple of feet.
I've found exactly that putting together my latest Unity VR game, and it means the difference between room scale and a more stationary game can be very very marginal, provided you're standing in one spot for stationary/seated rather than actually sitting down (which is by definition limiting).
Until something like the Virtuix Omni comes out (probably in about 1,000 years at this rate - I'm a <100 backer and that's 3 years and counting for a slippy dish and pair of shoes), even room scale will be limited to short movement distances, and re-orientating yourself to the room center - the more you play with the Vive, the more you notice you don't really move that much in physical space unless you have a large room, and even then, 6m is only 5 or six large steps before you're chaperoned (and with a larger room, it's an even bigger pest to get back to the center).
SPT works very very well however because you're on a fixed platform with a fixed play area. Vanishing Realms, not so much. And I can't possibly imagine how you could even do a room scale proper FPS with large levels without teleporting.
So, caveat emptor. Room scale is impressive as hell when you first play it, but after that it starts to show through how "not large" your room is.