I've been carrying the contego every day for over 6 months and I think it's just about the perfect folder. I've actually sold all of my other folders.
What I love most about it is that it's probably the strongest production folder on the market while also being slim, comfortable, light weight, and a good slicer. The high hardness M4 is awesome and only needs to be touched up every few weeks. I've only done a full sharpening one time.
The contego Is basically a folder that can be used like a fixed blade. I've put mine through some very hard cutting tasks an it always comes out unscathed. When you factor in the price there isn't a better folder on the market.
And I've extensively carried most of the big time production blades out there including the Spyderco Millie, para2, manix
2, Delica, ZT 0551, 0560, 301, Benchmade bedlam, 710, SOG tomcat, and trident.
I think the next best thing is the BM 710 in M390