I have driven myself potty with reading opinion on slings, but have deduced that the mei tai's and basic slings would be best for me. I've used a 'closer' with someone else's baby and sort of liked it but it got a bit muddled up, plus with being small (5'2") the long ends looked a bit silly.
So...in the end I picked this because the fabrics were funky and it wasn't too complex!
I'm glad babydragon and you found this type of thing successful - hope I do too! Embarrassed that my sewing skills barely stretch to button sewing because frankly, I'm sure it is perfectly possible to DIY with a sling like these, isn't it?!