[amsat-bb] Any experience with low-cost 433MHz transverter from transverters-store?

Hi folks,

I'm trying to get on the air with the linear transponder satellites, and it looks like I need 70cm SSB capability to really get on the air. My Icom IC-796MkII can do SSB on 2m, but not 70cm, so I'm trying to find an affordable way to get 70cm SSB transmit.

Does anybody have experience with these $100 transverter boards from Ukraine? It looks like they're tuned for the weak-signal/SSB end of the band and might require a bit of work to get up to 435MHz for satellites. Is 3-4W enough to be heard?

http://www.ebay.com/itm/221871269275