Is 500 € for Orion XT10i a Good Deal?

[Clear Skies!]

I have been looking for a Dobson scope, and I've found, that Orion scopes are really cheap and good in quality. Then I decided for Orion XT10 because I could see more details. I went on Orion XT10i because I am a starter (my previous scope: Celestron AstroMaster 130EQ - don't buy).

So I have been looking for good deals. But budget is crucial. I want something under 600 €. And then I found a deal on Amazon.de for 507.00 €.

I want to know if this is a good deal. Is this scope in nice condition? Does the "i" part of XT10i (i.e. the push-to control) actually work? Has it got good optics? Would it be better to buy new Orion XT8i scope? Size (for transport) doesn't matter.

And last, but not least: is this scope really good for all Messier objects and even more?

 

Clear skies!