Our group of four will be in London in the next 2 weeks. Has anyone taken the Thames River Sightseeing or 24 Hop on and Hop off Thames boats? Recent information would be best. Interested in know how crowded they are and if there are waits or long waits this time of year? Any recommendations on one over the other? I know about the Uber Sponsered Thames Clipper as transportation with no guide. May go with this one if it has few crowds. It's to get the experience and see the city from the river. Thank you.
I did this LondonWalk a few weeks ago, in case it sounds like what you are after.
It used the UBER boats you referenced, and it was not crowded on the Sunday I did the tour.
https://www.walks.com/our-walks/thames-sightseeing-brunels-river-cruise/