This is the best cordless hand vacuum there is.
This is one of only two cordless hand vacuums that have a lithium-ion battery. The other vacuum is twice the price and, in my opinion, is not as good. Lithium-ion batteries have the highest energy density of all available batteries, do not have the undesirable "recharge memory" of nickel-cadmium batteries, and stay charged longer than nickel-metal-hydride batteries.
The Hoover LiNX BH50030 vacuum is light weight, is compact enough to fit into tight areas to clean, and has better suction than many full size corded vacuums.
It comes with several tools, including a motorized brushroll head which is very easy to clean.
The dust bin and filter are simple to uninstall, clean, and reinstall.
Overall, this vacuum cleans remarkably well.
My only minor complaint is that the crevice tool could be longer to reach better into crevices.
As with all cordless tools, I recommend you purchase a second battery (Hoover part number BH50000) so you can vacuum using one battery while the other battery is recharging.