My parents just bought one, and we had a great summer on it. Theirs is a 20 (22 maybe?) with a 50 Suzuki, so just a cruiser but so far so good. A 150 on a 24 should scoot pretty good, if it has sea legs that will slow it down some but they are nice!
We are just looking for a pontoon to tube and ski behind. It will not see big water, just a small 230 acre lake. Probably a little overkill for the size lake.
I just don’t want to steer them into a low quality toon. They currently have a Weeres which has worked out well for them and has held up well over the past 13 years.