The Neewer BG-1T battery grip for the Canon 70D looks remarkably close to the official Canon BG-E14. The ergonomics and look of the grips seem identical. I can't speak to build quality as this was an extra rather than a critical addition to my kit, thus $175 for the Canon was a bit steep. I got this Neewer version for only $26.49 shipped on eBay. Heck, even if it fails, you can get six of these for the price of one Canon grip.
The Box & Contents
Anyway, the Neewer grip comes well packaged in a solid box and surrounded by bubble wrap. It will easily survive the trip to you.
There isn't much to an item like this, just the grip itself and an extra battery tray to hold six AA batteries if your two LP-E6 battery packs. Speaking of, I got a Vivitar branded pack for only $12.96 and it seems to be doing just fine. Again, it's a far cry from the official Canon LP-E6, which goes for $59.
The BG-1T Grip
Just like the Canon version, the connections to the body appear gold plated. The screw that mounts it to the camera is solid and there is the little nub that fits perfectly to prevent the grip from turning.
The controls mirror those on the front and rear of your camera. They aren't as...smooth, for lack of a better word, as the Canon controls. They function well though, and seem to be plenty solid. An example - the wheel has discernible and audible clicks as you rotate it, which the Canon doesn't. It feels similar, but it's audible.
The grip has a power switch, which enables and disables the controls.