My story is almost the exact opposite of yours. Got Silo back in March and was a beta tester for Hexagon about the same time. Didn't have time to do much in Hexagon but I did sit down with Silo for a weekend in April. I took right to Silo, loved the interface. Around May I had to create a Space Shuttle model for work and picked up Hexagon again (almost like the first time actually) and worked in it for about 4 days. I agree with you about the interface not being as easy to get into at first but once I got into it I found it to have a lot of things I wanted that Silo didn't have. Being able to import Illustrator files is major with me and Silo is not scheduled to do that anytime soon, version 2 doesn't list it. The gist of all of this is that both are impressive modelers with good companies behind them. You can pretty much model anything in either one and both can be had at a great price. This is a great time to be a 3D artist. A few years ago the pickings were slim and expensive.