Cessna Boy
Do you have the option of changing to another club and finishing your course on a 150?
As a PPL with several hundred hours, I love the later PA28s (especially the -181s and 236s), but they are so easy to fly that you may miss some valuable learning points as a student.
I had a similar dilemma to you, doing my first 15 hours on 150 and then completing the course on a PA28 (old style) due to a change of location.
I loved the PA28 at the time, but with hindsight would have benefitted from more time in the 150.
Good luck, whatever you decide.