I bought the Blingworks kit late last year & have been very happy with it (have used in poor weather conditions too) - didn't worry about the LED indicators.
Interior bulbs I got from eBay - for very little money - as in $25 delivered & the kit did every conceivable bulb & number plates - all installed (I had the LED boot door lights installed & it was awful to have cool white vs. yellow in the boot area). It is how the car should have come from Subaru (among other changes)
Have ordered the LED DRL to replace the chrome "slash" in the bumper...once fitted will post up here...that did cost a bit more & tool me a few months to bite that bullet!
The bulb change was easy too - just read the Subaru manual
One suggestion - buy an interior panel removal tool (or I have a trusty cake slicer - no joke - very thin metal but strong as - it's all I use it for now) for the stubborn parts - most autoparts store sell them