Absolutely the best choice in this price pool.
Don't even bother comparing this flat with those that seem a bit nearer to the center. It is a common mistake and a misconseption. Believe me, you don't want to live in a tourist-oriented and crowded district.
This particular flat is probably the best choice for a pair of tourists. Wide range spectre of different shops for every need. Groceries are right outside.
All three different subway lines are in a walking availability. You won't be struggling with the transportation at all.
But, most importantly, hosts are providing absolutely top-tier quality of service to the renters. You get a completely ready-to-live, new, cozy and quiet appartment in a newly established building with almost a VIP service quality.
From now on, i'll definitely will be considering this flat as a best tourist choice from all the available hotels and airbnbs for this price in Prague.