I'll just echo what others are saying, these bibs are great. They punch well above their MSRP, and I have owned many pairs of bibs costing $50-100 more that are no better than the Neo Power. The chamois is not super thick, which is a total plus for me as I generally prefer a thinner chamois over a big diaper (I'm talking to you Sugoi RS). Size wise, I am 6 feet, 33 inch waist, ~170 lbs and the Mediums fit me very well. I have had lots of team kit from LG over the years and the M bib short is always the size for me. The Neo Power are pretty snug until washed a couple of times but over many washings the Power Lycra has retained its compression.
The only drawback is that these are probably not the best bibs for scorching hot weather. The Power Lycra is thicker than most shorts I have owned. I consider them great for temps up until about 80 F but beyond that I think these would be way too warm. Fortunately live in a climate where is 80 is a scorcher.