instead of goto all buffers. This removes the qf window from the list.
nnoremap <silent> [unite]f :<C-u>Unite -start-insert file_rec/async<CR>
" unite-buffer {{{3
-call unite#custom#default_action('buffer', 'goto')
-nnoremap <silent> [unite]b :<C-u>Unite buffer<CR>
+call unite#custom#default_action('buffer', 'open')
+nnoremap <silent> [unite]b :<C-u>Unite buffer:-<CR>
" unite-menu {{{3
let g:unite_source_menu_menus = {}