We stayed in Delft for several days (2023) and really enjoyed it. Our hotel - Hotel De Plataan Delft Centrum - was "interesting". The hotel had "themed" rooms and non-themed rooms, and we (actually it was me) opted for the themed room - an Egyptian one - and it was not something I would opt for again. Just a little too weird/quirky. The hotel itself was very friendly and had a wonderful breakfast. It was well located and had bike parking.
Delft itself was well located as well - we did trips to both the Hague and Rotterdam, plus some great cycling in the countryside around Delft. We rented bikes locally from Halfords and they were easy to work with. Nice variety of options for food - especially canal side - and lots of beer. :) plus plenty of shopping, and there is a short RS walking tour too.
So, De Plataan gets several high marks for friendliness, location, and their breakfast, but SKIP a themed room. Not sure how the other rooms were, so maybe see how they look on the website. From what I can tell, those would be what we would book for our next visit.