Really cool game! My son and I have played a few games now. Love it!
If you don't mind, how old is your son? My girls have had a lot of fun with the PFACG, and I'm hoping to introduce this to them over the summer...would be curious re any issues you might have had re with the game concepts.
Thanks
My son is 8 1/2; he is starting 3rd grade. A few years ago I stared playing cards games with him such as Blood Bowl Team Manager and LOTR LCG. The latter he needs lots of help, but BBTM is very easy because of the use of icons. SR Crossfire similar use of icons really helps and is not a hard game to understand the rules, but knowing when to play what is the hard part, and what to buy. I help him with that and he really likes the look of the cards and the concept of the Street Samurai... surprise that an 8 year old boy likes a cybernetic samurai!!

edit: He also has MTG and Pokemon cards and is starting to understand MTG more now. He is also playing a beta account in Hex Shards of Fate.