What are the opinions are the hand/spin trimmers like this Spin Pro Trimmer?
I was thinking of getting one for time savings BUT do they do more damage than good?

Spin Pro Trimmer Trimpro spinpro Hydroponics scissor - eBay (item 200519114933 end time Oct-12-10 19:09:03 PDT)

Just do not want to drop $500 if its just going to damage buds vs hand trimming. Just curious how other guys are trimming grows in the 1 lb to 2 lb range.