Bests & Worsts Reviews from Amazon

These snap on to an uppababy vista stroller easily and securely. They seem to do exactly what they were designed to do. HOWEVER, do take note of what they were designed to do before you purchase them. These lower adapters are ONLY usable with the Mesa and the bassinet. They are missing a groove that is necessary to accept the toddler seat. I repeat, they will NOT accept the toddler seat. ADDITIONALLY, the only way these adapters can be used to is with the upper adapters. They are COMPLETELY USELESS unless you have both sets of adapters (well, I suppose they could still be used if you left the top attachment point unused and just wanted your infant closer to the ground whilst you strolled...) I'm not sure why these are sold separately from the also required upper adapters. Just make sure you get those too if you need them. I suspect that most people do not, and will never, need these, particularly on their own.