Had a nice stay at the Adina. Everything was beautiful and high quality. The apartment amenities in the room worked out really nicely for doing laundry and having food on hand. The gym was clean and new as well as the pool/sauna. The only problem was parking. There is such a small garage that the hotel couldn't offer parking. They directed us to park in the garage across the street, which while not too inconvenience, was very expensive.
The location was perfect for walking to areas of interest in Wiesbaden - the Kurhaus, Casino, pedestrian shopping street, cafes, restaurants, etc.