Sony PSP was another device released by sony that lost its charm within months of its release.They also released a later version that us the PS vita. The main reason for the failure is its lack of new games.
The ease of use is not bad. It can be tricky in the beginning for beginners.
It has a basic interface and I think the creators should develop the softwares and not give up on their older products.
The style is decent and nothing special.
The security while using internet is very very poor. Viruses can easily enter your device by a mere download of an image.
The value of money is no more good. It has list its charm and games never develop for a psp.