I bought it as a sample as the bulbs in the cage kept burning out. I've had them for a while and never had a bulb burn out so can't really confirm longevity but it looks like they'll outlive the bulbs they've replaced.
Pros
HALOGEN EQUIVALENT 3; 25W: 3W R14 E17 LED bulb equivalent to 25W halogen bulb, good brightness, direct replacement for any standard E17 halogen bulb, incandescent bulb or compact fluorescent bulb.