I have Aiko 4 & I've played around a bit with her. (ooh er misses).
She has a better base body than V4 in my opinion & finally I don't have to look at that god awful V4 face! When mixed with V4's morphs including the NGM's I feel you can make some interesting body shapes. I need to work further with the face before I have a solid opinion on this.

I must add though that this really isn't A4, it's just extra morphs for V4. Yes, it's good that you can use V4 textures & clothes which is a good plus, but really this is not what I expected, again Daz has not lived up to expectation. I was disappointed with V4 & I would normally have been hopeful of a great A4 but I learnt from last time not to expect too much. I actually feel conned in a way by not getting a new figure, it's like not getting real value for money.

I don't have M3 & I won't be getting M4. I just hope for those of you that are looking forward to the new Michael aren't going to be fobbed off with extra morphs for V4 which Daz will sell as M4. I don't feel this is the way to go.
Don't even get me started on the male morphs for V4. I won't be trying them but from what I've seen, if anyone wants to render a lady boy or transvestite then you'll be OK with these morphs! Scarey.