I have FS2004 and the Just Flight Flying Club addon (I am learning on the Tomahawk, Flying Club has a Tomahawk, C152, Warrior and Seneca), I find it useful for practicing my checklists, I get out my Club checklist and run through everything, it is proving very useful in helping me remember things.
How do you find the C152 model's performance? Every simulated one I've tried climbs like a homesick angel!
The one I fly is definitely a little less spritely. Of course that may be because both my instructor and I are fond of pies...
The problem is that it makes the circuit pretty unrealistic to me. My field has noise abatement procedures to remember, and the turn height come up too quickly. In one model I found I was hitting circuit height before the end of the runway!
Good point with the checklists though.