I have only owned this coffee maker about a week.  Prior to this one, I owned Cuisinart.  So far I love the Ninja.  I've never had a removable water reservoir but I highly recommend it. The only thing I would change is the height.  I have a 100 year home with original kitchen cabinets.  The maker doesn't fit under my cabinet.  Took me a while to figure out the programing, as it is so different from most.  Ex:  the auto start, you have to push the button twice.  I like the twist off lid to the coffee pot (see photo), but the coffee pot lid is strange with the funnel it has (see photo).  I am not complaining at all, just something I am having to get used to.  I am hooked on the quality of Ninja products.  Luckily, I have not had any issues.