I am just about finished with my first listen and wanted to offer my own perspective.
First, some background -- I'm a Porcupine Tree fan...mostly starting with Stupid Dream. I don't really care for most of what came before it. But I found the band with In Absentia. I've been sorta meh on his solo albums. I dig some of all of them, but I think I'd be accurate in saying that I'm not a "fan" of his solo work like I am a fan of Porcupine Tree from Stupid Dream through The Incident.
I've been fortunate over the years to get advances of his records and always listen to them intently. They've been hit and miss for me, but I have to say, I really like what he's done here on To the Bone. It's still very much prog, and does have some classic PT-sounding moments (the last track in particular). But he's infused it with this 80s pop sound that while not usually my cup of tea, I am finding really entertaining. PROG magazine referenced Peter Gabriel's SO era, and that's about right. But its definitively Steven Wilson.
Even after one listen, I find it much better than Hand. Cannot. Erase. Although that record received a lot of acclaim, I didn't get into it much. I did enjoy Raven Refused to Sing, but it has been a while since I listened to it, so I'd hate to do a comparison without giving it another spin first.
But simply put, if you like Steven Wilson, and don't mind a little 80s pop mixed in (it doesn't distract at all, it sorta just "works") it'll be a real enjoyable listen. Again, I'm not the biggest SW solo fan. I much prefer Porcupine Tree. But I was pleasantly surprised with To The Bone. Worthy of checking out for sure.