Server just opened for few hours and already there some guys lv 30-40 , what I suffer in CBT for

I dont understand what you mean

Not really, i have seen one Person Level 19 the other are under Level 15.
But it is right that we can better get Level ups, with exp boosts from quests and the start with Level 8 (beta reward) is this easy.

This is normal, if you got a group of real friends grinding with experience cash shop items, there will be easily level up in this game.. Just buy the cs experience and boost your grinding, there is already lvl 40s - 50s in the game which grinding around.. If you not willing to buy any then you can only spend your time slowly level up..

I'm not in a real rush to get to the high levels. Besides, this isn't the only game I play to pass the time. I've only made it up to 16 and I'm content with it.

iicecube wrote: Just buy the cs experience and boost your grinding, ..

Pay money to grind faster? Hmmmm p2w or play something that doesn't stunt leveling via cash shop.....

Best thing to do is not pay attention to Grinders aka cash shop heros. They don't do side quests or anything like that so you wont see them much.

I cash shopped and do side quests :V Is I bad for supporting a game I like? I like the title cash shop hero IM A HERO! :U