Ot would want to be significantly better to warrant changing lounges and the long walk each way
Sorry for replying so late:
Being EK Gold, I have been to EK Lounges in SIN, BNE, & AKL and find them to be overall, very identical - which I quite like.
EK in the lounges I have been to, have a knack for the smaller things. The colour and style of tiles, chairs etc, it just works and is comfortable.
What is worth the walk in BNE? - well first up the range of food on offer. It simply is 500% more and of a better quality. I look forward to the offerings in the EK lounge, and often am not disappointed. Also the offerings are replenished very quickly and if something was missing - it will be replaced seconds later. The only thing QF do do better, is in the Coffee department at BNE.
The second thing is the bathroom and showers. In the EK lounge everything, excluding toilet paper, is a real towel, from hand towels to dry your hands, to the towels to have showers. They are also bigger and snugglier. The bathrooms have hordes of amenity kit items ready to use - and full range of perfumes if you wish to choose. The showers are also 3 times larger per cubical, the same with toilets. I found the QF lounge in BNE, the bathrooms would be what I would expect from a well kept McDonalds restroom, as the EK lounge is what you would expect, plus more from a penthouse suite in a 5 star hotel.
The direct boarding from the lounge is great. They tend to only call the flight, when you can walk straight onto the flight from the lounge. You are not privy to any of the streams of calls made downstairs, you get a 5 minutes heads up call, then 5 minutes later you are walking directly onto the flight from the lounge - it makes the time from leaving the lounge till the time you are air-bound very short. But yes, you need to be flying an EK flight to do so.