I like CA proline stuff. The aug from any manufacturer has roughly the same flaws in their design. The front handles tend to break off because the type of metal they use isn't strong enough for the amount they use, and the retaining mechanism for the gearbox shell tends break over time and allow the gearbox to move around internally.
The first I have seen first hand many times, the second I've seen happen a few times and heard of others having it happen as well, but overall it is a good gun, especially if you are willing to fine tune it and make small repairs as needed, like any other gun.
If the style suits you, get one. CA and TM are still the two best manufacturers out there in my book, though CA these days isn't what it used to be.