True, it's impressive when you think the Allies flattened the place (90%) between 1942-45. The view from the south tower (sudturm), if you can cope with some 500 steps, is spectacular - hopefully still open to the public.
On balance though, I think I preferred Dusseldorf - some classy shops & buoyant riverside quarter in the Old Town, or the mediahafen area on the south side. The Radisson Blu maybe. The last time we stayed though, we were attending the Techno-Classica car show at Essen Messe, so we stayed at the Mercure at Ratingen, convenient for the show halls & generally getting around the whole area. BTW the T-C dates for this year are 13-16 April 2023, well worth a visit. There is also the massive Caravan Salon at Dusseldorf Messe late summer, for those interested in such things.
PS: don't forget your TUV Umwelt emissions sticker if not organised already ...........
https://www.tuvsud.com/de-de/branch...laketten/bestellung-feinstaubplakette-england