lackluster at best.
Unfortunately, this company did a very shoddy job on our wallpaper install. We had a small-ish wall (about 12'x8') that needed papering. Out of 6 or so seams, 3 were extremely visible and misaligned. She offered no guidance on whether or not the wall should have been primed and sized--which it should have. Instead, she just jumped in and did a messy job. On top of the visible seams there are air bubbles and mis-cut edges.
We hired another wallpaper professional to come and give us a second opinion on whether or not the job was salvageable, and he made it pretty clear that he would have to completely start over.