Yep, Maxwell makes amazing stills and it looks like it has a great material library. Version 1.5 sounds like it will be great, especially with the added Linux support. For those on a budget try Indigo, which is free and has a great community. I have seen comparison renders and Maxwell is faster with arguably better results, but Indigo is still impressive. I have been running it on my spare Linux box under Wine.

Once again, great work. I enjoy seeing architectural and environment pieces made with MoI.