I had a Simmons "silhouette" model, a 6.5x20 with AO, target knobs and a ram engraved on the side. It was the worst scope I have ever owned. After a few months the target turrets became inoperable.
I have a Tasco 36x, a few BSAs, three Weaver T series, a Premier Reticles Leupold 18x40, Premier Reticles Leupold 6.5x20, Bushnell 8x32 4200 on different airgun, rimfire, and highpower silhouette rifles so I have a bit of experience with various scopes. I would say run, don't walk from a Simmons.