I recently stayed at Lindtner for a 4-day business conference. The hotel's location in a quite suburban area just outside Hamburg makes it a perfect spot for business meetings and/or conferences as there is almost no distraction from the outside and the area is very quiet, peaceful and green. There is a beautiful woods just opposite to the hotel's main entrance - perfect place if you like jogging before breakfast.
On the other hand, if you happen to be looking for some action at night, this is not the right place to be as there are almost no bar, restaurants or entertainment spots nearby (unless you're willing to take a 30 minute drive to Hamburg city).
The hotel interior is nice and comfortable without any "extras". Such are the rooms as well. Clean, relatively spacious, with big windows letting in loads of daylight and good (although a bit small) bathrooms. I wasn't very happy with the quality of my pillow, but the mattress was o.k. One strange thing was the minibar - in my room it was built inside my closet and I had an extra key for it:)).
Breakfast was very good although quite standard and without any surprises. Lunch and dinner were o.k. too but again without any thrills.
This review is the subjective opinion of a TripAdvisor member and not of TripAdvisor LLC