Received my [ame=http://www.amazon.com/CowboyStudio-NPT-04-Wireless-Receiver-cowboystudio/dp/B002W3IXZW]Amazon.com: CowboyStudio NPT-04 4 Channel Wireless Hot Shoe Flash Trigger Receiver for Canon EOS, Nikon, Olympus & Pentax Flashes Other products by cowboystudio: Camera & Photo[/ame] last night and got to test it out for about 30 mins and it works great! I flashed about 30 times and it didnt miss one. I would expect they would compare to the cactus models but they only take about 3 days to get to your house. The build quality is somewhat cheap and reminds me of a cheap rc car (when compared to a nice one) but its definitely a good alternative. Hope this helps anyone who is trying to decide on what to get.