This stick smells so much like an Arko stick and has very similar lather and performance. I have no idea how much it costs because I received it as a present from a friend of mine. I'd say the Arko is slightly more skin-friendly, but this one too is pretty good.
This product is part of the shave stick review project located here: http://badgerandblade.com/vb/showthread.php/310894-Shave-Sticks-Review-Project
I first reviewed the project with other Turkish shave stick and now, in a more general way, with all the shave stick (and sometimes pucks used as sticks) that I own.
The Tweex Shave stick is relatively cheap. It's an okay stick. I do not think that you get the best lather ever from that stick. The product is really hard so you need to soak the stick to soften it and apply a lot of product. Even then, the lather is okay, it's missing something, some cushion. I tried overloading it and it still has that "missing" feeling.
Using a DE or SE, it's not a problem, with a straight razor, it's a different story. You are missing some of that protection that is so required.
The scent is close to laundry detergent. I understand that many want to shave on the cheap side of things, that's why they buy Arko. This one, is not as good as Arko and a bit more expensive. In my case, I do have Arko but I would never go exclusively with it. The scent is too boring.
Anyways, back to Tweex, I would honestly skip this one. Add skip it and run if you are using a straight razor