Snails are still slow, even when you compare them to slugs.
What I dislike about TT isn't TT, but its fanboys. They claim that it allows you to seperate content from presentation from logic and that nothing else in perl does. What rot! Wanna display a table of data? You need logic in the template to loop over the data. Wanna display an arbitrarily sized table with arbitrary headings? You need a *lot* of logic in the template.
The fanboys also argue that TT is easy for non-programmers to use. Sorry, but my experience differs. I wrote some nice functional templates which worked, handed them over to a designer to make pretty (and bear in mind that TT is alledged to be designer-friendly), and he promptly broke them all.
Given that you can't get away from putting logic in the template, why bother inventing a whole new mini-language, when you could just use perl? The fanboys say that that means you put too much code in the template. Not true, unless you're an idiot. Perl has these things called "modules".
Having said all that, I do use TT. For *some* jobs, it's the right tool. For other jobs I use it grudgingly because it's the company standard and it at least has the advantage of being well known.