I had a 27" Thermador before this and wanted the extra space in the 30". Have had it for a year now.  LOVE the side opening.  The oven is very quiet however I don't have a problem hearing when it beeps as some have said.  I use the dehydration (100 degree convection ) a lot - very few ovens go below 170. 

My only negative feedback thus far is that my probe didn't work -- apparently one shouldn't push it in all the way. Just before that there is a small click. This is NOT documented and should be.