I recommend you get a straight 1064 laser, there are a few vendors. You'll get the most mileage and highest safety margin. I prefer Aerolase because it's less painful and affordable but Candela and Cynosure have them too. Cutera's YAGs seem exceptionally painful for whatever reason. But I think you should be careful about expectations on 'complexion' blending, especially skin types 4-6; you can use a YAG to reduce dark spots left over from acne and PFB (i.e., PIH) but you have to be cautious about things like melasma in terms of long-term results, and can't expect to repigment using light energy. But you can get some tightening and tone/texture improvement with 1064 and reduction in fine lines or, gradually, in acne scars.