So after my bad experiences with gamestop with their used games that are really expensive i searched on the internet and found rebuy.de 

On this site you can sell your stuff and buy stuff very cheap

The prices for games are on this website much cheaper than theyre prices in gamestops

Wanted to know who has or had experiences with this shop is it legit and trustfull

I bought quite a few things from rebuy in recent years and never had any bad experience so far.

But to be honest, I never bought any articles directly over their own website, rebuy.de.
Instead, I bought used items on amazon.de, didn't really care for the seller, and rebuy simply turned out to be the cheapest of the available offers, so I bought from them.

Just recently for example, I bought a set of 4 Playstation "Buzz!"-controllers from rebuy, for just about 4 euros + shipping. The next cheapest offer would have been several euros more. And they really were in perfect condition, just as they claimed! I'm still delighted.

If you're still not convinced, just have a look at their Amazon.de seller profile:
http://www.amazon.de/gp/help/seller/at-a-glance.html/?seller=A15UX8GPD9OYJE
I believe the 4.8 rating and the high number of ratings speak for itself.

And well, if you're still unsure if they're really trustworthy, just buy over amazon.de. Pretty much all of rebuy's articles seem to be listed as "used items" on amazon.de as well.

tagging for a look later, interested myself in any info people have on the site.

How are the pay methods 

Is it only paypal or i can transfer the money to their bank account ?

As I said: So far, I never bought DIRECTLY from their own website, rebuy.de.

Instead, I bought rebuy.de products via amazon.de, so I used the standard Amazon payment methods.

But if you decide to buy directly on rebuy.de, then sure, you can use "Vorkasse" and transfer the money to their bank account.

Thats great with Vorkasse didnt know that march i contacted the costumer service but they said me i could only buy via paypal but it looks like they expanded their pay methods 

Oh and another question are the user manuals not missing and the game disc and cases without scratches and everything complete and not missing ?

Yes its legit if you just want to have the games but it can happen that the games come without manual.

They also have always a 5€ coupen online for 30€ or more valued order so always look online to see for coupons

Thats great thanx 

Im looking forward to get some ps3 and ps4 games