received a few days in a perfect package. The build quality is good. Little more, it operates as a slave triggered by the internal flash of my 700D. In short TTL HSS + for that price it's great. You need good batteries with cheap rechargeable he cuts as described in the post below. I put Duracell rechargeable and no problems.
The only gripe is its weight (but I have no way to compare with competing models).