The Galaxy S6 Edge Plus is not a phone for everyone: it is a big device, it is very expensive and the edge functions – and the feel of the phone because of the curved screen – will not appeal to everyone. It is certainly very recognizable though and this is perhaps its strongest selling point.
The Galaxy S6 Edge Plus is not the best phone for productivity(that title goes to the Galaxy Note 5) and it doesn't have the very latest specs(its specs sheet is pretty much just the Galaxy S6 specs sheet). But it will appeal to fans of multimedia who love to consume movies, play lots of games or live broadcast themselves to YouTube.
The Galaxy S6 Edge Plus is an exceptional device with one very big problem: the price. For all the things the Galaxy S6 Edge Plus does so well, it's hard to justify them as worthwhile when you consider the price. The cost/benefit ratio seems way out of whack. You can easily find a different phone with equal performance and hardware for a much lower price – you just won't get that curved screen.
The Galaxy S6 Edge Plus is a size rival to the iPhone 6 Plus and a companion device to the stylus-equipped Galaxy Note 5. If you want a big screen with great specs and don't want an S Pen, the S6 Edge Plus might be for you. However, Samsung hasn't really done anything new with the S6 Edge Plus other than making an existing phone bigger. The one big thing going for the S6 Edge Plus is the curved screen is unique among large-screened phones. Perhaps that's enough.