First of all - if an (rare, if ever) event invite is the reason to do runs for P1 then - don't.
In fact, I doubt anyone here will suggest P1 is worth chasing to any significant degree tbh - as long discussed over the pages of this thread
However to answer the direct question about the MCG Concert - it was great. I'm NOT a Swiftie (lol) or even close to one, but she puts on a great show, has ear worms for songs and is a very good entertainer in general.
So QF often have corporate suites at the MCG (I've been to two footy games and now Swift) and the experiences there have been pretty much on par. The seating is great. The view of the stage was fantastic from Level 3. There was several varities of food offered - from cheases and canapes to prawns, sliders, wedges and later some dessert type items. All smaller things one could eat at one's seat or further back in the box if desired. The attendant (Nick) from the MCG was fantastic, seeing to people's needs, topping up drinks (I had a fairly full glass of bubbles during the show, though I also was not sucking it down so probably only had 3-4 glasses in total through the 4.5 hours total we were there). Drinks were soft, waters, beers, selection of wines and sparkling. Unsure about spirits. Suite had i's own loo and held about 16 people. QF had two members of the VIP Team up from HBA there who were lovely, though tbh we talked very little as the show pretty much started when we all arrived so most people settled in for the concert then did a lot of chit chat. Overall it was a great night. Weather was absolutely perfect (sorry SYD lol) and everything was super well organised by the MCG and QF there were no issues at all.
Anyway, again, anyone who has read this thread over the journey would know that while some of us have been so VERY lucky to get absolutely brilliant opportunities like this (a true money can't buy offer - even though it was suggested these Swift seats were in the $3k p.p. in value), there are many who have barely had anything from QF - maybe due to loation being away from MEL and specially SYD, or just the (bad) luck of the draw. I've been P1 for 10 years now, and consider myself to be very fortunate to have had the invites I've had - as I noted above a couple of times to the footy (AFL) and now Swift, which clearly has been the best thing yet QF have had for P1 in my view. I know a bucnh more are going to the SYD concerts too. However, I'm also acutely aware that many aren't getting things like this. That absolutely must be taken into consideration.
For me, P1 has never been about these events or things. Yes, absolutely brilliant and wonderful, but I don't either consider these bias me more to QF or less. I consider these intangible benefits to be separate to the actual P1 benefits.
Would I do runs to get to P1 with the hope to get more? Absolutely not! There should be zero expectation here - specially for invites. Even things like reward seat release - which is by far the best cuirrent P1 perk are hardly guaranteed - but I've done very well out of this too - and this isn't even an officially published benefit.
QF is good at upping expectation and then disappointing via inconsistentcy and this kind of thing is a (very first world problem) prime example of this. Don't go for P1 expecting amazing experiences - either like event invites or even special treatment in the air or from VIP. Sometimes fantastic things happen - and QF are definitely far more flexibe and willing to make things happen for P1 than others (in general) - absolutely - but they just as easily don't deliver at times.
so again, in summary of my ramble (sorry). I would not recommend chasing P1 for many reasons - but the last one being expectation of event invites.