If you like Salsa, Picante or Mexican Cheese Sauce go for the Pace Instant win. My cupboard is getting full from all the coupons I have cashed in. We eat alot of Mexican food here so they are welcome wins.

I have very bad luck with instant wins. I rarely win one. I have stopped entering any unless the grand prize is worth the effort. I have tried entering at all times of the day and the middle of the night and still no wins. It was beginning to get me down, all those "I'm sorry, you did not win" notices.
If you are lucky at instant wins then play them a lot. Some people do very well with them.

I have won 4 times in different coke instant wins.  I have also won 4 general mills $5 checks and 3 Pace Picante sauce.  These all seem easy to win.  Love these sweeps.

I enter all sweeps that way - enter & forget it!!! 

I've won the GP from an IW I couldn't hit on {diamond watch} and got an IW prize on a 2nd chance after the winner either didn't respond/was DQ'ed {my FAVE win - the DELL laptop I'm on} so I know NOT hitting doesn't mean you WON'T win!!!

I've won a bunch of times on the Pace instant . 2 times so far on the cheerios. but, the most i've ever won from was the V8 Splash one a couple of years ago. I won 4 Harlem Globetrotter tickets. 4 teeshirts. and a basketball net with basketball.
also the Gatorade one 2 years ago. i won 3 sets- a towel- a basketball- waterbottle - and $45 dollar Sports authority gift card. plus maybe 9 basketball posters. that was a great one.

Instants can be great if they are giving away alot of prizes at once. if not, then the wins are hard.