is 16gb enough storage for your average user of Samsung Galaxy tab pro 10.1
would I need to add more gb storage to my tab pro 10.1
IMO, yes it is enough. Especially for a Wi-Fi only tablet, 16gb is plenty of space. Majority of your used space is typically music, photos and videos. So since you can only use this on Wi-Fi there is no reason not to upload all of that to your cloud drive and just stream or view it from there saving all of your internal space for apps.. And it would take a WHOLE lotta apps to fill up 16gb alone