The user interface is very intuitive for users that have no experience with computational fluid dynamics (CFDs). I like how easy it was when we were setting up our first simulation in order make sure everything worked as expected before going live. We do not dislike anything about this product at all! There are many different options available within Mantis Flow which makes creating complex models easier than ever. This has allowed us create more accurate predictions of flow patterns by being able compare multiple designs against one another without having to run each design separately or manually adjusting variables between runs/models until they match perfectly. The most important feature is the ability to simulate in real time, which makes it easier to design the product. It has a good user interface with a lot of features. I can't complain about anything, so far. Definitely give it a try. You will be surprised how much you will enjoy using this tool. We have been able to reduce the amount of hours required for our CFD analysis by almost 95%. We are able to analyze complex geometries without having to spend countless hours trying to find the right solution.