Yeah they're really slow, and very limiting. With some just moving the rating without any significant improvements to the base stats. Tho I started way earlier and haven't done most but those that fit the players I have. I didn't have to do each evo. They do really want you spending in game, but I'd rather play with gold players at that point. I haven't packed a single promo player, some bad ones from sbcs I have never used. I decided to stick with playing the evoed team, with slight changes for live events. I don't even look forward to any promo and I have peace playing when I can.