I've been sold on the V1 since they came out. If you have one of the older, bulkier units, you can send it back and have it upgraded to the lighter, thinner new units. Check out Valentine1.com and there's an upgrade area where you enter your serial # and find out what upgrade is available.
The combination of the V1 and Lidatek laser jammer is great. Now, if I only could jam radar with frying my testicles at the same time!