Going with adaptable-tint lenses means less faff, however, they're ultimately a bit of a compromise compared to using separate ones. Specialized's Adaptalite road lenses handle both bright daylight and lower evening light well, but they take time to adjust.
Riding in and out of sunny patches can be problematic as the lenses take a few moments to catch up - it's more noticeable when going into the dark before the deep-tint fades. The frames are a chunky, durable plastic, scaled down for smaller faces. They're a tight fit and the non-adjustable nose-piece can leave marks if your schnoz is too wide for their shape. Likewise, the thick frames interfere slightly with your vision if they don't sit quite close enough to your face. Rubber grippers on the arms stay in place well and small side vents help keep fogging at bay. They come with a hard case and cleaning bag and have stood up well to a lot of use.