Dimitrov is nowhere near the hype level. He wins against minnows but against the top guys he folds. Moreover, just as it looks he's in form and ready to make a big run, he retires. Almost twice in a row.
At Wimbledon he had a great chance to win against Baggy but failed. I mean how the heck do you retire from exhaustion on freaking grass. Until he makes that breakthrough everyone keeps talking about, he's nowhere near the top.
He didn't retire at Wimbledon with exhaustion, he had a virus which can strike down anyone. It was unfortunate, especially as he was playing so well before that match but there's not a lot he can do about it.
He's always done well against the top players even when he was a kid. He's beaten Berdych twice, destroyed Fish at the Hopman Cup, had close matches against Tsonga, Gasquet and Ferrer and taken sets off Simon and Nadal. He's a work in progress and it's probably even harder for Grigor than most of the young servebots and grinders as he has so much variety to his game. It has taken him time to figure out when to hit the right shots and play consistently.
He's been hyped for a long time but that is because he has such an exciting game and people want to see someone with his style do well. He still has got a long way to go but it looks like he is finally starting to live up to the hype.