It's a small form factor; but, not too small for my fat fingers to dial.

Actually, it would help my aging eyes and fat fingers if the display were larger and the buttons further apart - but not really problematic.

Overall, the buttons are easy to use (though they ARE small for fat fingers like mine), easy set-up, fairly intuitive use

The only drawbacks to the phone are the small keypad, which takes fat-fingered people like me a bit of getting used to, and the display doesn't add any sort of separators to the entered phone numbers, so if you want to see 1-213-555-1212, you're going to be disappointed when you see 12135551212.

I had to use my fingernail as my fingers would hit more than one number

The initial set up is quite simple except plugging in the battery requires delicate fingers.

When my battery died I contacted Plantronics about ordering a new one and they sent me one for free

I'm busy at home and love the ease of doing this n' that while conversing