Not only am I “happy” with the default engine, I find it far superior than any of the other environments in which I’ve worked.
Personally, I really appreciate how Django handles this. I’ve spent too much time in the Java world in applications where the code logic is split between multiple layers and it’s incredibly frustrating to have to find out where some data element on the page is actually being retrieved or calculated.
I like the concept that all your data needs to be aggregated in your view and prepared prior to rendering the HTML. (It has also made it easier and cleaner for us to reuse some of those views when we want to generate something other than HTML.)
I think it’s a huge plus to have a templating language that actually tries to make it difficult to do things that end up being a maintenance nightmare.