I’ve bought some sample figures and agree that they are brilliant. I’ve based my for Black Powder on 30mm x 15mm bases, with two rows of four figures. I’ll try and put some pics up later, once I’ve found the camera!
As for basing, I flocked mine so that they fit in with my gaming mat and scenery. I did consider going ‘old school’, but then I’d want to have terrain that looked ‘old school’ as well. Time and space preclude that option at present. The only thing I would say is that for me ‘old school’ looks right when based in nice regimented rank and file. Personally I would keep them in neat strips.