The Good: Easy install and battery swap.
The Bad: nothing so far.Overall Review: If you cruise around town or commute to work via bike, you probably already have lights sorted out for your bike. If not, the Niterider TL5.0 is a good inexpensive option to alert those behind you that you exist. Some of the nice features about this Niterider is that it is easy to install, comes with a rubber shim that should help fit any size post, it uses a common battery size (AAA), and it has a number of different flashing modes that you can cycle through. It's probably not the fanciest or toughest rear light out there, but at under $10, this has been a good purchase and adds a little peace of mind when sharing the road.