I've used a 6-qt. aluminum pressure cooker for years.  It finally bit the dust so I decided to try a stainless steel cooker.  This one is taller, but not as wide, as my previous cooker.  However, it is plenty big to hold a 3-4 pound chicken or roast, which is what I usually cook in it.  So far I really like it - and no problems yet with hardware rusting like I've read in a few reviews.  I would recommend this one to anyone who needs a not-too-big pressure cooker!