I think the current subsciption price is too much for what at the moment being offered is essentially C2 in a browser (C2.3). I'd have much less of an issue if C3 launched with the C3 runtime and all the new features it will hopefully bring, but for now i don't think it's worth it.
If it wasnt for the 50% off deal i wouldnt subscribe, but i'll definitely be seeing what is added over the next year to see if it will be worth renewing at the full price.