I've looked forward to and delighted in pressed coffee every morning for years and this press is the best I've ever purchased. It has its flaws but I've never experienced grounds leaking back into the brew. As those who use a press know, the coffee beans must be ground with the coarsest grind possible. At the present time I use a Solis Maestro grinder and over the past six months have never had grounds in my coffee. Perhaps I have an unusual press, but I think not.I agree the "3-hour-hot-coffee claim is a stretch." My first cup is always perfect and if I have my second cup within an hour, I certainly wouldn't want it any hotter. The reason I'm posting is I am searching the web for replacement screens for the press but I'm told there is a six-week back order.I'd give the press 4 stars. Find a coffee you like, grind it as coarse as you can, press it and enjoy.