This is not the dull but indestructible brand of phone that BT was once famous for but it is far from flimsy either!
I found it very easy to mount on the wall with the typical two screw-hole arrangement on the back.
I use it with a Plantronics wired headset which works very well. My wife uses it with the handset, which she prefers, and that works just fine too. The handset lifts off effortlessly yet stays in place securely, in both wall-mounted and desk mounted positions, without any adjustment required. Unlike other phones I have had, this one stays on the wall where it works well for us both :-)
The secrecy button comes in very handy, especially for conference calls.
I haven't had to use the amplify button, nor have I tried the 3 memories, so I cannot comment on these features.
To sum up, this phone has been perfect for my home office, where I work 1 or 2 days a week. I would thoroughly recommend it for that purpose or for typical domestic use.