If Jake Gardiner can be 80% of what Kaberle was, he'll be a real treat.
I don't understand the hate for one of the top offensive, puck moving defensemen in the league over the last 15 years.
The guy is one of the slickest skaters in the league, he can move north-south and east-west as well as almost anyone you can think of. His stickhandling is great and when combined with the raw skating ability, he will become a great threat on the break-out.
His physical game is basic, his defensive positioning is not good - in the offensive zone he tends to get caught out of position very often due to the focus on his offensive contribution, and in the defensive zone he makes just as many bad decisions as most of the rest of the team (including Dion).
And that's fine, there have been many players with the same kind of style and flaws, and some went on to become greats, one is likely a top 3 defenseman all time. What they learned is that playing defense is not all about hitting and scaring the forward, but it can be just as useful to cut down the angles and to use the stick to mess up with the shot/pass/movement.
Despite his age, his skating will mask much of the learning curve he will go through in the NHL dealing with much smarter, more experienced, stronger and faster players than he's dealt with in the AHL.
Normally, you'd like a veteran on the ice who has lost foot-speed who can teach the player all about these little tricks, about cutting someone off instead of pushing them off course, about reading the plays instead of reacting. Sadly, the only veteran the Leafs have who could impart any of these things, is someone that doesn't fit into the team's system and will either be the 7th man, traded or bought out.
Gardiner played like a young star last season. Despite his offensive abilities, he still makes the mistake of forgetting that as a defenseman, even an offensive one, his primary duty is to prevent plays and goals from being scored against his team. That was the reason he sat so much of last season after the injury. Because his skating wasn't back to normal and couldn't mask all of his defensive deficiencies.
Once those are taken care of, he'll be a great player to watch, even if he tones down his offensive play.
I can definitely see him play on the first pair sometime down the line (maybe 2 years), and will hope to see him on the 2nd line this season with a more conservative player next to him.