This isn't something I "didn't like" per se, but if you're a dumb American who only speaks English (which describes most of my group), expect to use a translator app to communicate with the staff. (The staff are accustomed to this and we didn't have any problems doing this.)
Reasonably convenient location (we were attending 34C3 at the Leipzig Messe). Breakfast was nice. Staff were helpful (though we didn't need to talk to them often). Good price.
Perfectly suited to the purpose of the visit (connecting flights).
Nicely located near the airport, very close to public transportation (15 min. to centre of town). Calm neighbourhood, no noises at night. Friendly staff, good breakast!
You get what you pay for...