Instruct: Classify the given Amazon review into positive or negative sentiment.
Query: Problem with CPU consumption

I have been using Tiny Firewall before switching to ZoneAlarm about 18 months ago. While the daily use is quite simple, I missed some of the features of Tiny.However, the reason why I had to remove ZoneAlarm appeared about 2 months ago: when left alone over night, the CPU consumption of a process installed by ZoneAlarm called "vsmon" goes up to 100% (we are talking about a 2.4GHz system), blocking the usability (it is not a virus / trojan). The problem is experienced by several people on the web without a known fix from ZoneLabs at this point.Several people on the web also mentioned privacy / spyware concerns with ZoneAlarm. This I could not verify.