I'm looking at a house with a first floor master bedroom. My kids are 8 months and 22 months. They both sleep well from 6:30/7pm until 6:30ish am in their own cribs in separate rooms.

I've considered if we got this house sleeping in an upstairs guest bedroom for a year or two. What do you think? Anyone have a first floor master with young kids... what are the goods/bads?