Do you have the ability to try them side by side? That would be ideal. I would recommend listening to a Katana before you buy one. Not everyone likes them. If you are a beginner, a standard amp might be best so that you spend more time playing and less tweaking. If you still want a modeler but one that is simple to use and tweak but sounds great... look at the Vox VT20X. I tried one after reading a review here and it is a great little amp. I liked it so much I ordered one to keep my GT40 company while I am out carousing. Racing Green FTW. Good luck and keep us posted.