Are you talking about this one?
http://smile.amazon.com/Flysight-Black- ... v+flysight
It's okay.
You can piece together your own kit for about the same price and probably better performance, though. And with tried and true parts supported by actual users.
Boscam TS353**: $37
http://www.hobbyking.com/hobbyking/stor ... itter.html
Black Pearl monitor***: $229
http://www.dpcav.com/xcart/Black-Pearl- ... annel.html
Plug n Play cable: $10
http://www.dpcav.com/xcart/Video-Cable- ... xtech.html
Monitor mount: $9
http://smile.amazon.com/Hobbypower-Moni ... itor+mount
Total: $285
As for antennas, you can go with the highly rated FPVLR antennas for $110:
http://fpvlr.com/shop/index.php?route=p ... uct_id=106
Or the well regarded Ibcrazy Bluebeams for $65:
http://www.getfpv.com/ibcrazy-5-8-ghz-b ... a-set.html
**NOTE: If you get the TS353, go to the link I provided and stay idle for a minute or two. A popup will show up in the bottom right and offer you a ~$5 discount
***NOTE: If you don't need HDMI, which you probably won't, then you can save on the monitor/receiver by going with the Boscam RX-LCD5802 that is used by many and highly regarded here for $150 (note that you need to buy a power supply separately for about $6)
RX-LCD5802:
http://www.banggood.com/Boscam-RX-LCD-5 ... 08273.html
Charger:
http://www.newegg.com/Product/Product.a ... 1NV1NV0559
If you go with the RXLCD-5802 instead of the Black Pearl and wait for the $5 discount for the transmitter, then you're looking at $207 without antennas. Your choice about which antennas you go with, but at this price you can get FPVLR antennas for $110, putting you at $317.
That's less money than the package you're looking at. Keep in mind you'll have to pay for shipping, but that puts you at about the same price. Yes, you'll have to order from separate sellers...but you'll get tried and true components.
This all said, OSD hasn't been mentioned. You'll want the iOSD Mini ($68-$70) for any FPV setup. It's really silly to fly with FPV but no OSD. The iOSD provides important telemetry information on your monitor including distance from home point, height, velocity, battery percentage and velocity, etc. There's no reason you wouldn't want to know these things.