Is a 5 hour 3 session process normal for a plane checkout you're already trained in? I've joined a flying club and am in the checkout process for their 152. I've trained in it, was endorsed by a 20,000+ hour instructor (who felt comfortable enough renting his personally owned 152 to me after the checkride), and my DPE (who a commercial pilot tried to steer me away from due to her supposed high fail rate, i.e. she's demanding) thought I flew the plane well. I'm a very new VFR pilot with about 70 hours total, and find this checkout process is taking longer than usual under these circumstances. Has anyone gone through a similar situation? How have they dealt with the matter? The instructor is also making me feel less safe as a pilot doing things like banking with full flaps, and pushing "flap religion" on me (i.e. 10 on DW, 20 on base, 30 on final without really considering the approach environment). Due to W/B restrictions on the 152 he's the club's only viable checkout instructor.
It is normal for flying clubs and flight schools to require a checkout before allowing a renter to solo, which may take several hours, regardless of their license level or previous experience. They often require additional training if you dont have a certain minimum time in type.

Your club might be slightly more paranoid than average, but that probably translates to cheaper club insurance and thus lower rental rates, which means you will probably save money if you stick around.

Also, it should be noted that 70-200 hours is the period with the highest accident rate, so some paranoia on their part is probably justified. Even if it's "just a 152."