I bought Jake in flex for my preschooler and Jake in grip-n-go for my little toddler, and I have loved both shoes.  My preschooler tends to scrape his toe across the ground when he walks/plays, and I we've had many pairs of shoes ruined in the toe area before he outgrew them.  This pair has taken his lickin' and keeps on tickin'.  I absolutely LOVE the flexibility of the grip-n-go styles, and they worked so well for my younger son who was a new walker when I first bought them for him.  One of the elastic faux laces on his shoes has come detached, and is barely hanging by a thread.  It looks ratty and beat-up, but I keep putting them in those shoes, because they fit him so well, and he looks so comfortable in them.  I buy different style shoes for my boys because I want them to match their outfits.  These shoes in navy go with practically anything they wear.  I hate paying full price for anything, so I keep waiting for a sale to buy replacements, though I think my toddler has sized up now out of the grip-n-go style.