It is nice to read all your experiences!
For restaurants, I might recommend also the one called Celnice in Namesti Republiky (lovely place, same group as Kolkovna), also there is one called U Vladare (near the Japanese/french/swedish embassies).
You should enter the corridor that leads there (avoid the terrace, prices are expensive), and on the right side there is a door that leads to what is called the "Konirna" (the stables) food is excellent, I go eat there often whe I'm going to the embassy (i'm working at the french embassy but not on the same geographical site) and it's a quiet place with lot of political personalities and celebrities going there "incognito". I've been eating several times one table away from the former minister of foreign affairs of czech republic.
If you want to have a drink in a VERY LOCAL place, try getting lost in the area of Zizkov, on the bar called "U vystřeleného oka". It's very local and typical, maybe I shouldn't spread the address too much, anyway it's not at all in the center of the town. It's here :
http://amapy.atlas.cz/?smartname=uvystrelenehooka#x=-740801@y=-1043317@cs=1@sidx=10@app=0
Been walking around the town square and want to relax ? Go at the Grand Café Orient, the famous cubist house. The place is wonderful and romantic... you'll be transported back in the 30's with the pianist who plays standards. The decoration is in the cubist style, and still very modern despite the age. Order a Viennese coffee and just enjoy...
I'm getting lost, so many places to go!
😉
Cheers,
Max
buzz me if you want some specific infos!