Years ago EQ2 had a trial island, I don't know about today. It s**ked bad. Then they did that SWG space station thing and it was equally as bad.

I tried the new Vanguard trial Island and its not to shabby. Reason being is geographically, its pretty large so you don't have a confined feeling like their other trials. The Isle of Dawn is pretty large (like all the land masses in VG).

If you just want to see if VG works on your PC these days its a good test run. But I'm a bit bias to VG.
They could not have picked a worse time to launch this however...the same week as WAR launching...crazy. Typical SOE, good idea but badly executed.