First impression was good, but finally last a disaster

Much I had promised me the iPaq 914 (I already had the predecessor). The first impression was very positive: the touch very nice, well finished and equipped with everything you need business technology.
Unfortunately, the iPaq has proven itself in practice no piece. Software problems are the rule, and to an extent that even our IT has now abandoned. My unit was sent three times to HP, brought several times to factory reset condition and with firmware updates to the latest version. Nothing helped. Spontaneous crashes, an ultra-slow performance (sometimes 30 sec. Waiting for the start of a program is not feasible) and the phone function is rarely to use (it will ring, and you can not take the call ...). If you tap a text message and receive a call, the SMS is gone. What sometimes helps is rauszunehmen the battery and so to force a reset. Practicable and is not the one makes a mockery of the equipped with BlackBerry bystanders. Battery power is also under all that is bearable. The Extended capacity battery is also not a solution, because it does offer twice the capacity, but is also twice as large. Then standing on the back out the battery case and a half centimeters.
I use again my Nokia 6021. This may indeed just make calls and SMS, but that right.