Ricoh's later plastic-bodied SLRs like the KR-series had nice features but poor reliability.
In my experience, it's hard to find one that actually works these days. And, if you do find
one, chances are it won't be working for long.
A Pentax K1000 is a much more reliable camera which uses the same lenses as the
Ricoh and which has endured as one of the most popular student (or newby)
cameras of all time.