This has become my wife's go-to in Frankfurt when travelling for work (and, as my wife, this is a woman who spends most of her leisure time in $1,000+ per night properties). I just booked her in for another 3 nights in May. If she is enthusiastic about it - and obviously she doesn't have a $500 per night budget from work, I'm sure she'd have other ideas if she did - I'm sure you'll be fine.