I'm sure the interior will be solid and the rooms will impress. I'm sure people will enjoy new dining options (Poly could use something upscale) and amenities. To be fair, all of the new towers have done a good job offering modern, comfortable interiors.
But part of the allure of the Seven Seas Lagoon has been chipped away with each towering/boxy structure that's been added. In the past, the monorail resorts each occupied their own distinct space, and even some of the unbuilt plans (e.g. Venetian or Mediterranean) would have beautifully maintained that.
Now, the lagoon is increasingly cluttered and discordant, bringing down the area from 'magical escape' to something almost Vegas-lite. I'm disappointed they're doubling down on this approach, but can't blame them as it seems to be working.