I had a "Hobo Tool" produced by Ozark Trail (Walmart Brand), but after a few trips I ended up finding that it was not for me. I felt it was too heavy and although it folded, it was ridiculously thick and essentially saved no space because both the fork and spoon were full-size and just as curved as you'd find in real silverware. While it was a nice design element to have the spoon and knife separate from the fork an bottle opener and fold out to full size utensils, this setup left a lot of crevices that were nearly impossible to clean. I also don't need a corkscrew while I'm camping. It was, however, built extremely well, and held up to quite a bit of abuse.
I currently have a "Light My Fire Super Spork". I like the design, it's light, the utensils are useful, and it seems durable. However, every tool meant to do every thing seems to have drawbacks, and with this on its the "knife" edge, which is really a serrated fork tine. I found it rubs a raw spot on the corner of my mouth unless I close my teeth instead of my lips to scrape the food off of the fork. I might sand the serrations off if possible. I think I'd also like to have a separate spoon and fork.
A regular old spoon and fork with holes drilled in the handles to save on weight will be my next trial.
As for a knife... Yeah, it's probably disgusting to a lot of people, but more often than not I use whatever knife is hanging off my belt, whether it be my Aito Puukko, SOG Seal Pup Elite, or other knife. Even when I'm cooking or eating.
_________________________
"Learn survival skills when your life doesn't depend on it."