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.
Overall, we're unsatisfied with the job done.