These things sound kinda small from the dimensions. I have a 1 bedroom condo, but I have furniture in every room, plus a ton of boxes and a small tanning bed. Are these do-able for a move with a lot of personal items? Or is it only for small spaces like studios and dorm rooms? If you've used this type of service or know someone who has, how big was your container and what did you cram in it?? Thanks