Hi Trantor,
Yes, of course, it still has a while before being at the level of other commercial solutions, but as you said the price is not comparable either. Lumion is x30 times the cost of Paradise Sandbox, for example.
Just to give you guys some background about Paradise Sandbox: it's the work of an unique person in his free time during more than 4 years now (who is writing these lines...). What began as a hobby almost a decade ago, has increasingly become in a profitable work so taking advantage of the fact that this is my last year in the university, with just a final project to do, I've decided to go commercial with Paradise Sandbox and quickly improve it and add a lot of new features.
That said, the goal is not to compete in price, this is just a side effect of being such a little development team. However the idea is to provide a professional tool at a very affordable price. (version to version more and more features are added, you can check it at:
http://paradise-sandbox.com/forums/index.php?board=1.0 )
About the reflection: yes, it's weird since it's not a reflection coming from the glass, it's just that the internal house walls were set to be too much reflective.
Some renders from the new v1.1.1:
Xavier