Let me start by saying these glasses are a STEAL for the price. As someone who's paid $300+ for prescription transitions before, the $31 price tag had me skeptical. But surprise – they actually work! The -1.25 strength matched my prescription perfectly, and watching TV became noticeably sharper (goodbye ghosting effect!).

The photochromic feature does its job, though don't expect instant darkness. It takes about 2 minutes in sunlight to transition – slower than premium brands but functional. They won't get as dark as dedicated sunglasses (more like a light tint), but perfect for driving where you still need visibility of dashboard controls.

Now the elephant in the room: durability. The TR90 frames feel flimsy compared to my optometrist's glasses. While the spring hinges accommodate different face shapes comfortably, I witnessed hairline cracks appearing after 3 months of careful use. If you're rough with glasses or want years of use, this might disappoint.

Pro tip: The included case is TIGHT – I almost cracked the lenses forcing them in. Use the microfiber cloth religiously too, as fingerprints show easily on these lenses.

Verdict? Fantastic for temporary use (post-surgery recovery, backup glasses) or budget-conscious buyers who don't mind replacing them annually. Just manage expectations on frame longevity and tint darkness.