So back in November I talked about doing some 30 minute boils with 20 minute whirlpools. Since then I have brewed about 12 - 5g batches and all but one have been 30 minute boils. That one was a Dunkel and since then I have done 2 batches of helles with 30 minute boils no whirlpool. I am not sure I am going back to 60 minute boils be honest. I have seen no change in beer quality at all and I save some time. Even beers with a lot of Pils malt do not have any issues. The only downside, if you can call it that, is that you need to have all your ingredients ready to go. There is not a lot of time between the bittering (30) addition and flameout so having all the hops weighed out and ready to go is a must IMO. I still need to experiment more with variety of 30 minute hop I use. I was using a lot of Apollo at 60 for bittering and I have gone mostly to Centennial now but need to get some batches done with Apollo and a few others to see how they work and if they introduce any flavors not desired.
It is really worth a try IMO.