Mixed results - CenterPoint 1-4x20mm Rifle Scope, 1in Tube, Second Focal Plane (SFP)

I have had this scope mounted on a .223 for about a year. The optic has held zero well, even when I dropped the rifle on it. The battery life is good so far. The only downside is that several dozen small specks have appeared on the inside. There were only a few at first, but they have grown more numerous over time. They appear to be on the same focal plane as the reticle and may indicate debris inside the scope. It's distracting, to the point that I have begun looking for a replacement.