I bought this pressure cooker to replace a 27 year-old Mirro 6 qt.  The Mirro still worked fine, but I have a flat top electric stove now, and after buying 2 pressure cookers for friends, I thought it might be time for me to update.  The Mirro had warped so that the bottom didn't sit flat on the cooktop.  I bought Warever for my friends, so I have 3 brands to compare now.  The Mirro, when under pressure, jiggled consistantly, to let you know there was pressure.  The Warever model builds pressure and then gives a little burst as it releases slightly.  This occurs every 20 seconds or so.  With the Presto cooker, the pressure indicator is the blue buttom on top which has 2 lines.  The first line indicates "low" pressure, and when you can see two rings there is "high" pressure.  I like that you have two settings of pressure.  It's easy and quiet.  At first I was waiting for the jiggle, but then I got to the part in the book that mentioned the blue button.  This cooker is HEAVY!!  Some people might have trouble holding it up with one hand.  I couldn't pour my food out while scraping to get the last goodness out. I really like the steaming basket.  You set a wire trivet in the bottom of the pan and set the steaming basket on the trivet.  I did cauliflower and broccoli on low pressure for 2 minutes.  I don't know how much I'll use the steaming basket, but it's a nice feature.  The first meal I made was sirloin steak, browned first and then cooked with carrots and potatoes in Golden Mushroom soup.  I did it for 17 minutes, and it was wonderful!  I browned the meat in the pressure cooker first, but I had a lot of meat so it took 3 batches to brown it all. Maybe I wouldn't have had to, but I felt that I should wash the cooker before I added the vegetables as there was cooked meat stuck to the bottom.  I have found that the cookbook for pressure cookers is a little light on the time for meats.  I do pork chops for 20 minutes, no less.  All in all, I think I will be very happy with this cooker.  I am looking forward to trying some new recipes as I pretty much do the same meals in my cooker.  I paid $39 at a closeout store.  READ THE BOOK, even if you're replacing a pressure cooker and think you know it all.  Each one is very different.