I have the PW injectors. I personally love them. At idle, there is little, if any, smoke. Running at highway speeds, no smoke. If I romp on it under low boost conditions, I can belch a lot of smoke but it tend to clear up as soon as the boost comes up (very quick with the PDR HX-35/16). They are a BIG improbement over the stock injectors. I'm currently running ~200RWHP with mine and I still have done very little with the fuel screw. I know someone running PW's that dynod almost 270RWHP with an auto recently.
For me, they were the way to go at the time. With the recent screwing that Bosch has done to us on price, I'm not so sure I would go the same way.
Personally, I am waiting to find out how the EDM's that are being developed turn out. Then I will decide if I want DDIII's or EDM's.
Carl