I've never had a problem with the basic 4-cell chargers that Panasonic includes with their Eneloop starter kits, other than the mildly annoying fact that they cover more than a single plug on a power strip.
Build quality seems fine, and I've been using them for decades without a single failure, so I've never seen any reason to even investigate alternatives.
Build quality seems fine, and I've been using them for decades without a single failure, so I've never seen any reason to even investigate alternatives.