Neverwinter has a really shit F2P model and had even more retarded ideas about the game.
The game was in "open beta" up till what? 2 weeks ago? even less. Even if it was still BETA, they had micro-transactions in it.
People got banned for "abusing exploits" even tho many of them were reported ever since the closed beta. I was banned because I was trying to find bugs and report them.
Even tho the game was in beta, it was 10 euros for a talent tree respec. I had bad talents playing DC so I couldn't get into any group. I picked up bad talents because I wanted to test them and make sure everything was working fine for release. I wasn't able to do that for free and I just got a build that seemed good without actually trying to find out if they work or not because I couldn't afford it.
Zen for AD exchange? Not even close to possible. Zen was 550-600 AD each when I respecced. 600x550=330.000 AD... with a limit of 16k AD/day (that's what I had at that time for a limit) means 21 days reaching the cap. And it was kind of impossible to reach it and even doing all the dailies took way too long, let's say around 6-7 hours each day for more than 1 month... just to afford a respec.
Most of the content in Neverwinter is locked behind real money. If YOU don't have to pay, doesn't mean someone else doesn't. The Zen exchange is there but with Zen bought by other people for real money. Runes, profession materials, wards, etc, everything useful was gated behind real money. Maybe not YOUR real money but someone had to pay. Not really F2P in my opinion.
Currency for it was going at insane prices tho so I can't complain, I got more out of it than I invested, much more but I still look at it from a normal person's pov.