The VQ37 to my knowledge doesn't have good support with full standalone, and simply would not require it unless someone wanted to go for insane power, at which point I really think there are better platforms (LS anyone?). But the VQ37 with flashed stock ECU's also picks up more torque gains across the rev range than other VQ's. So for mild builds the potential to make pretty high N/A power is substantial with all the standard stuff that ought to be done in a swap (custom intake/exhaust/modified ECO with the security disabled, etc). We used ZFever to modify the stock ECU for this service.
I too was just wanting responsive high power motor that is relatively light, and reliable to thrash on. We should be over 400 bhp on this build but will do a custom tune before it is back on the road. Still lots of little shit to do. I will say that this swap is more of a pain than doing an LS, but I think in the end, since I have no intentions to sell the car for a long time to come, its important to get what you want, based on your own values and how you intend to drive the car.