I’m not too sure what information you’re after, but I also use a Vitamix. It’s fast, you end up eating everything you put in and the cleanup is easy (you can sometimes get away with just water and a bit of soap and running it for 30 secs). It’s also easier to justify as it’s useful for other tasks in the kitchen as well.
I’ve heard a lot about the Ninja blenders as a decent cheaper alternative. The Vitamix are kind of expensive and seem to have retained a lot of the features that made it a great commercial blender - no stupid safety mechanism, steel spline connection and overall a very durable construction.