Hello and welcome to the forum. I'm assuming you're talking about the Spyderco Stretch II with the black FRN (high-tech fiberglass plastic) handles and VG-10 blade steel. The Stretch II has a very strong following among knife nuts and I have yet to see a negative comment regarding this knife.
I own the carbon fiber ZDP-189 version and although I don't use it (I collect carbon fiber Spydercos), I like it very much. I would get the black FRN version for normal everyday use.
The 3 1/2 inch blade is perfect for all your everyday use.
The FRN handle is very grippy and will offer good traction, even when wet.
VG-10 steel is excellent and offers a fair amount of toughness balanced with edge retention.
Handle shape is very ergonomic and comfortable.
Full flat grind makes it an excellent slicer.
It can be taken apart for cleaning although putting it back together can be a challenge.
Lockback design offers a strong and reliable lockup.
I don't whittle so I can't tell you how good or bad the Stretch is for that specific task. If I didn't like my Sage 1 so much, the Stretch would be a strong favorite any day.
It's a good choice and I'm sure many would agree.
Dan