You can always get your funds directly from smart contract. It is a bit more complicated but there is guide linked somewhere in this thread. Furthermore, forkdelta has been operational for some time now and they are actually an interface using the same ED smart contract. In my experience they are much faster and better performing at the moment. Should be legit.
The question whether it is legit or not made me stay away from Forkdelta until now. Is it safe to import private keys using their interface? Couldn't they be phishing for such info?
They seem legit. However, site is only operational for short time so you can't be 100% sure. I would suggest that you use something like metamask to access it. That way they are not seeing your private keys.