I have to agree with the OP.

I have tried my best to use the web client with an open mind, but I am constantly asking myself why I bother to use it. I use the webclient nearly 90% of the time, but I do fall back on the desktop application or powercli when doing some things.

Things I dislike:

• UI design is radically different from old desktop client. Navigation is generally slower even if the webclient were to be more performant (there is more clicking involved).
• Requirement of a plugin (which is buggy and doesn't fully work)
• Performance (slow login, slow page loads, etc. There is even a delay to load the login dialog box!)
• Snapshot management (now multiple pages)
• Bug with VM lists. Sometimes webclient allows you to expand the list, but mostly you have to click on the list and scroll through it on the right.
• Update Manager is clunky to use. Keeping hosts patched should be a priority!