I just ordered the valco with the toddler attachemnt-I am so freakiing excited to get it. It was so hard to go through with it due to the price tag! I have 4 kids 4 and under though, so I need a good stroller for sure (can't sling them all at once
). I do have a snap and go and have really liked having it, but the kids will graduating from it soon. Dont know about the valco and the infant seat attachment-maybe someone else will.
I criss cross hotslings in hip carry or do a mai tei (babyhawk) on front and ergo on back if I sling both. I prefer to sling one at a time, but sometimes it has to be 2. My older two (ages 2 and 3) still like to be back slung sometimes too
. I also have a maya and am trying to get better at ring slings so I can use it more too. I like having variety since I babywear so much. I have gotten most of mine used from the trading post here or babywearer.