You chose well with the Cryo since it has a flipper, but as far as your BF's choice I hope he doesn't mind not being able to open the blade with one hand easily once it's out of pocket. I have that Kershaw/Emerson colab blade as well and while it's an OK knife the design lends itself to being very tough to open one handed using the thumb stud. It opens fine using the wave feature however gripping the knife out of pocket while it's closed you will see that your thumb rests on the locking bar of the knife, so when you attempt to flick it open using the thumb stud you are actually preventing the blade from opening by putting pressure on the locking bar. That is the thing I very much did not like about that knife. Like I said though the wave feature works just fine and you can open the knife very easily that way or just use 2 hands.
Anyways, if you hadn't already decided I would have listed the following as suggestions -
Kershaw Blur (many options for this knife and it is a VERY strongly built knife which is good for hiking and outdoor use)
Spyderco Endura4
Spyderco Budget line - Tenacious, Resilience, Ambitious, etc etc (really anything Spyderco in your price range)
Other Kershaws in your price range (like the Cryo you picked)
Have fun and be safe. Let us know how the blades work out.... Do you have a sharpening setup? Look into the Spyderco Sharpmaker for something easy to learn as a beginner. It comes with everything you need as well as great instructions. Also once you start understanding the angles you can use the provided stone rods to even free hand sharpen.