Trouble-free operation - but tough use in daily operation

I bought it because I needed my fix despite the numerous bad reviews a phone for my new phone line with the W921V. The price is so cheap that I bought the phone, even though I put on general wired phones.
The production of the connection with the router was smooth and quick.
The menu structure is largely self-explanatory for someone who has dealt before with such devices.
The display is easy to read. The attached batteries are working to my satisfaction. I had to stop, no conversation because emptied batteries.
The keys are a good size and easy to read. The same applies to the display.
The design is appealing.

What I do not like the response speed of the phone by pressing (waking up, processing speed, processing power) and the tactile feedback of the keys per se (without real pressure point, "rubbery").
Both points appear after my personal feeling felt in the handling of the phone - everything takes a long time and I am waiting for the phone.
Therefore it is now by connecting a corded telephone only replacement unit for all eventualities.

If that "feeling" does not matter, here are a low-priced and well-functioning phone, which blends beautifully with the telecom router.

Addendum: Over the holidays I had the telephone in the charging station. So the batteries were empty. Unless tragic. However, the battery could not load the phone in the cradle now. The batteries had to be removed and "be load" in the external battery charger. Quite cumbersome.