Hi, I'm new here too.
Although not claustrophobic, my first cruise was on the Fascination, inside (mid ship) with 3 other family members (in same cabin).
Seems like we weren't in our cabin much, and it wasn't much of a problem. We just enjoyed the adventure, didn't know what to expect, and expected the worst case scenerio I guess,
And had an INCREDABLE vacation and we never felt crowded. Honest! (Our cabin was a little tight, I won't kid you), but just being on the ship was worth a little sacrifice to us, and it wasn't unbearable at all. We loved the fresh air on the deks, looking at the ocean....
the HUGE ship....
Now we sail just the two of us, with whatever category we can afford at the time, and realize we have WAY MORE ROOM than we did the first time (with family).
Miss them though, we have some great memories, wish we could do that all over again.
Wish you the best, have a wonderful cruise!