I realise this post is old, but came across it and was curious. I'm a SolidWorks User turned Inventor user, and for me there are a few benefits, but otherwise it seems there the same, except for one major issue (in my opinion)... The work flow is longer.
1. trim: Inventor only allows you to trim one line at a time
2. Projections need to be created in Inventor in order to create relations to them in new sketches. This isn't necessary in SW, and relations can just be attached to existing sketch geometry.
3. Highlighting objects in the graphics window doesn't highlight them in the browser properly.
4. The feature tree cannot be organised into folders for ease, like in SolidWorks. This makes life so much easier.
5. I have to manually hide dimensions after each sketch. Constraints can be hidden by default (to hide all), but then you can't show dimensions per individual sketch.
I'm picking things up, as there are a lot of similarities. I've used it for a couple months now and work flow seems to be slower, at least twice as long. I kinda wanna stick with it as I hear good things about woodwork for Inventor, but I must admit i'm close to ditching it (at the moment i'm modelling sofa frames, but this can be done in SW anyway).
I can't speak highly enough of the forum though, as I've had excellent support on here! I either find a solution, or I don't - in which case it usually comes down to how the software functions. So in the latter sense it is what it is.