Fantastic hotel, breakfast-heaven.
We stayed for 3 nights at the Grand Mark in a Grand Deluxe Suite. The room is really big and comfortable (good beds, kitchenette, separate bedroom), and very clean. The hotel is located on a quiet street, but extremely close to the some of the best highlights of the city: the Powder Tower is literally a minute's walk away, the Old Town square 5 minutes, metro 2 minutes and lots of shopping nearby.
The breakfast is fabulous! Eggs made to order, huge choice of cold meats, cheeses, salmon, yoghurt, sweet bites like donuts and even a chocolate-fountain and prosecco. Wifi fast and reliable. Highly recommended all around!