I have both the stransky and the SH kit. I think the Stransky kit is more refined with better detail. Just my opinion. Both have their merits but again I feel the Stransky is the better of the two. Just depends how much detail you want on a kit. Both kits are close in price.
I hope Stransky will consider more of the lesser known aircraft for future production. I think a 1/48 SI-204D or GO-145 would be great. I know it won't happen, but an AR-232A/B "Tausendfussler" would make a very interesting kit in 1/48!
Cheers