I've always just used Coda since I got a Mac 5 years ago. I haven't had any problems, so I haven't been compelled to switch. However, I keep hearing people talk

I've always just used Coda since I got a Mac 5 years ago. I haven't had any problems, so I haven't been compelled to switch. However, I keep hearing people talking about Textmate and Sublime. Why should I switch (I've been holding out for Coda 2, but I'm starting to lose hope)?