Actually a port job is free if you have the understanding of how to do it yourself. Same with the flapper installation, which also isn't necessary. You don't need an external to kill creep either. A properly ported internal wastegate is perfectly capable of holding boost on a Big 16G.

The Evo III 16G is a great turbo and I would recommend it to anybody. Not everyone wants the power of a 20G or larger turbo.

For example, my college roommate ran a Big 16G on his 97 TSi AWD Auto. He ran a consistent 12.0 at 117mph over and over again for months. Besides a shift kit, his tranny and torque converter were completely stock.

16g turbos are plenty powerful and fast for pretty much anyone. If you want mid 11's or faster, or some insane highway top end, then get larger. If not, the 16G is for you.