I had the opportunity to go to Which Wich on a recent Saturday afternoon, and my first impressions of Which Which are mostly positive.
What I like most about Which Wich is the uniqueness of the joint. The whole order via circling your choices on a pad with a pencil; ordering format works, and reminds me of a burrito-joint in Chapel Hill by the name of Armadillo Grill. I like that there really are no set, pre-made subs. Everything is made fresh to order and is tailored to your specific topping and sauce needs.
I will say that the parking lot was a little hectic and the inside felt a bit chaotic as well. There weren't many available seats and it looked like the Tasmanian Devil had just run through the place.
As far as the actual taste of my sub, it was excellent. All the ingredients tasted fresh and my sandwich was made to my specifications.
Despite the interior, the service was excellent and the sub tasted good enough that I would def like to return to Which Wich again, perhaps giving the location at the MET a shot.