The cost is low enough that it's worth a shot, but I wasn't really impressed. The problem with the stock trigger isn't necessarily weight, it's grittiness and creep. The spring might make it a little less gritty, but it made the creep worse on mine. Where before, when you finally got the trigger moving, it would break, now it the lowered pressure between the surfaces allows you to gradually move the trigger until it fires. It's lighter, sure, but I preferred it heavier but crisper.

Polishing with some flitz makes a big difference though.