I just got my wii u out of storage storage because i was mobinh. I was invilved in wii hacking and i missed alot of updates on u. Before updating what are the benefits of hacking your wii u?
Well, there's a backup loader in the works at the moment, as well as a firmware spoofer, and a content installer. You'd be pretty silly to update now. Watch this forum over the next few days as more info develops.
Definitely check your firmware version. Most firmwares below 5.3.2 are exploitable, however most upcoming tools are specifically for 5.3.2. If you need to update to 5.3.2, you can do so with a Mario Party 10 or Splatoon disc.
^ This. You can install game updates and go online thanks to that, just no eShop so if your Wii U came with a download code you won't be able to use it.