So I stayed in the Ink over the last weekend.
I has a 'superior' room using the Accor member rate including breakfast.
The room was more than fine - very clean and with a large TV and a coffee maker and a kettle. There was also a fridge in the room. Bathroom was fine totally enclosed with opaque glazing. The second room I had (my stay was extended a night courtesy of British Airways) had a different layout where the bathroom area was open but the shower and toilet were in separate cubicles again fully opaque doors - so in reality only the sink area was open.
Depending on the rate I'd happily stay at both the Ink or the De Witt again.
Staff were friendly and the breakfast had a good selection of hot and cold buffet food (bacon, sausage, scrambled eggs plus meat, cheese and various pastries and juices.