Very common rifle here in the UK and Europe. Generally considered built of better manufacture than the typical Remington 700 and its clones.
1 think to note is that Steyr shot themselves in the foot with the first model in that the stock forend is truly awful. We once deliberately sat one out in the sun and returned 30mins later to note how the forend had twisted and now touched the barrel!
Make sure it's either a model 2 or has a replacement stock.
The 6.5x55 is a much respected round and steyr have a long history of creating sweet rifles in this calibre.
I myself own a Steyr SSG69, ProHunter Mod 2 and Scout Tactical.