Ok, this is a fairly simple unit. I only put pods into it, and it has a couple of very minor problems. First, you really need to clean it after each use, but it is simple to clean, take out two plastic holder pieces, rinse, and dry. Also you clean off the top puncture point. This is a very minor thing. Other thing I wish was different is the 6 or 10 ounce (or 14 ounc) setting for coffee amount. I would have liked 12 ounce, but it is not a deal breaker. Last thing is the machine takes a couple of minutes to heat up and then send hot water through pod. If you are in a hurry, there are faster machines around. Finally, I like the strong brew option. Seems to help a little. Biggest gripe with pods is they produce weaker coffee.
Awesome! Works better than a Keurig by far and so much easier to clean and the best part is able to brew grounds also instead of k-cups, but using k-cups is better, coffee stays fresher. Takes about 3 minutes for a cup to brew and I don't have to wait for my coffee to finish in a pot. I had the original Flex Brew and this new model kicks its butt! Everything about this model is awesome the best they ever made!