VR900 has Broadcom chipset, so good choice if you have a marginal line. In my experience with Broadcom the reported connection speed will be lower than other chipsets (infineon / Trend) but the stability will be better.
On my (very bad) line the maximum Broadcom connection speed will be about 10% less than with a TrendChip but will be 100% stable vs up and down like a yoyo.
So sounds about right!
C