I like the look of those tanks and like to buy some of these. I plan to use those tanks for something different, however. But before buying them, I'd like to know what to expect. I have seen them only on their website and they look easy to build. How is their casting quality? Is it free from distortions and bubbles? Did they include some 20mm cannons in the recon variant? Do they have (roughly...) the same size?