I have ~30 plugins installed with Vundle, and regularly add and play with new ones.
For zsh I have exactly two (syntax highlighting and one I'm forgetting at the moment) and I can't remember the last time I saw another that looked useful.
The features Vundle has that surpass Pathogen are also the features that I don't really consider that valuable.
The main feature Vundle has over pathogen for me is that I don't ever want to manage a git submodule when not forced.
He also uses it to build a nice default zsh profile here: https://github.com/matschaffer/zsh-matschaffer
Sounds pretty good if this works out I think. Are there any obvious downsides?
I'm late here, but if there are any questions, I'll answer.
Seeing the github stars shoot up, I guessed HN happened to the project. Here we are :)