@JakeRyan, in case of Kielce square they actually wanted to go back to the original, historic state of the place (this is what it looked like in the past):
That pool in the photos posted by pawian was a fire retention pond built by the Nazis during occupation in the middle of the historic square with its history going back to the 12th century... I can't blame the city authorities that they wanted to get rid of it :)
In my opinion it's good that the renovation happened, because now we have a proper historic square in Kielce instead of a noisy roundabout. People weren't relaxing in that place anyway due to the traffic and the noise and that spot was dingy already. There's a proper park not far away in the city centre with a big pond with a big fountain and ducks and swans are swimming there, so it wasn't a great loss, imho :)
The renovation itself was, however, an example of Polish "betonoza" which was trendy at that time - too little or almost no greenery. Fortunately, the trend seems to be changing:
kielce.naszemiasto.pl/wielkie-zmiany-na-rynek-w-kielcach-zamiast-tylu-kamiennych/ar/c1-7590337
And here are interviews with inhabitants of Kielce - the reporter is asking whether they prefer the present day square or what was before and in general what they like and don't like about the renovation (young people seem to be complaining more about the lack of greenery):
kielce.naszemiasto.pl/kielce-kiedys-i-dzis-co-mieszkancy-sadza-o-zmianach-wideo/ar/c3-4296898
I'd like to add sth about the unfortunate changes that happened behind the city hall (the taller building on the left in the photos), but I don't have time right now, so maybe another time :)