One thing I think people need to understand is that 'Tex-Mex' should not be considered a goddamned insult. Texas has a deep history with it's relationship to Mexico, and Texas is fucking huge.
To put it in perspective, go look at a land size comparison of Texas and the entire UK. Texas is bigger. On it's own.
So to expect it to not have it's own culture and it's own cuisine is stupid as hell. Now, if we want to discuss which we prefer... that's a different conversation.
And to ask me if I want to live there? The answer is a resounding "hell no."
I would say more California than Tex - Tex Mex has heavier emphasis on fried foods. The company is headquartered in California. It looks like the owner got most of the inspiration in San Francisco, and then moved to Colorado.