I've got a eureka zeus exo 1 tent and a marmot pounder plus sleeping bag. The tent is garbage. I have used it about 20 times. The tent poles have busted in 3 different spots. Condensation is absolutely awful, even with the door flap open. It is small, light, and easy to setup however, so I'll be using it again this year because I'm too broke to buy another one. I've read other reviews of them that said that they leak terrible in the rain too, although I haven't camped in anything but wet fog so far.
I have only tried out my marmot sleeping bag once so far, and it was 28 or 29 degrees out so I was still cold. It's rated down to 25, but I wouldn't want to use it in anything colder than 35 or so. It's incredibly light, small and comfortable. It is actually smaller than the $15 walmart fleece sleeping bag I used last summer that didn't keep warm even when it was only 45 or 50 degrees. The only complaint with it so far is it cost me about $200 through REI.