I'm still trying to get a decent brew from my Maishfest.
I'm comparing my experience & results to BIAB on my Fullhorn.
At the moment I would say the upgrade was pointless. I've already ruled out using the cooling coil as too much faff compared to overnight chill.
I'm not tall enough to lift out the malt pipe. I've tried a ladder, but that required an assistant to put the lid ring in place. I was successful on my most recent brew using rope & pulleys, but again I had to get the ladder out to mount that on the apex of my brewing marquee to get the required height.
I have also tried a pump, but as the wort won't trickle through the malt pipe fast enough to work with my 12v pump running at 6v, with a thumbscrew clamp to further reduce flow.
I can't even reuse my Fullhorn false bottom & bazooka as it's diameter is too small.