Is it a keeper? For me that question, aside from storage space, comes down to the following:
Does it fit?
Do I like how it rides ?
Does it put a smile on my face?
YMMV Regardless $50 for a solid mid tier bike is a nice place to start. You can get legit seat post binder bolts on Amazon (Action), I had a similar
hardware store solution on a Novara Randoneur I refurbed this summer