Here are some notes about the Leipzig, Germany, Marriott.

Lounge hours: 6 am - 12 midnight.
Breakfast: 6:30 am - 10:30 am, with Sat and Sun breakfast in the main restaurant. I was told it would cost 20 Euros more for breakfast in the main restaurant on M-F.
Evening food: 5:30 - 7:30 warm; 5:30 - 9:30 pm cold.

I think the food is good but perhaps limited because of the small size of the lounge.

The gym is also very small and has mostly treadmills. There is one multiple-purpose machine and an adequate assortment of dumbbells. I did not use the pool or whirlpool.

No problems with check-in, wifi, or staff requests.