I've done over 8000km (5000 miles) on the OEM Dunlop Sportmax 214's so far and to be honest, I haven't had a single issue.
Fast road riding, touring, commuting, wet weather riding, dirt roads.... I've done it all, and to be honest, I can't fault them. They've been great. Even running standard road pressures the whole time.
In fact, I've liked them so much, I tried to get another set, but alas, unless I special order them, no bike shops in AUS stock them.....
So I bought a Dunlop Roadsport instead. Exactly the same tread pattern, but dual compound. Only bought a rear for now cause the front is still going!
I like the fact that they're a fast road tyre (not a sport touring tyre), so I have confidence in the amount of grip available, but still get awesome mileage too. Win, win.
Anyway, just my two cents. Most people complain about the OEM tyres, so just thought I'd share my experience