At one point in the past, I did have a bunch of plugins (nerdtree, fugitive, surround, nerdcommenter, etc, etc) but they weren't that great (I guess because vim's scripting facilities and UI isn't optimal for writing complex IDE-like features) and were always conflicting or otherwise a hassle.
These days I get by with vanilla vim with a conservative vimrc and I don't consider my productivity crippled. The only plugins I miss are surround.vim and a commenting plugin.
If you like to try any plugins, sure go ahead but I don't think it's a good idea for someone new to vim.