Crumbs! - this must be flame bait π!
Seriously, I have a Geist (2006, purchased new this year) and have entered into a death feud with Geist Vehicle Leisure.
Somewhere, perhaps in a remote corner of a distant galaxy, there is probably a worse company than Geist - but here on earth, they hold the title for non-existent customer service delivered with contemptuous arrogance.
Which, in summary, translates as 'don't buy a Geist'
Having said all that, and without wanting to get embroiled (once again) in the specifics of my dissatisfaction with the crew of the jolly pirate ship GVL, I can answer your main questions.
The front bed is made using roller slats. sounds OK, dunnit? - however, these slats have been a pain in the posterior to a lot of Geist owners.
The slats are about 15mm thick, which is good. However, they run in two parallel aluminium channels and the ends of the slats are rebated to about 7mm thick to accommodate these channels - which is bad.
The rebating effectively means that the entire slat is only 7mm thick - and, naturally enough, they snap - usually depositing the occupants of the bed onto the floor.
We are of average build (we're not talking Giants & Giantesses here π and our slats snapped , leaving us with no ******* bed for the night!.
I'd like to be able to say that the slats snapped because of wild abandoned sexual shenanigans - but, alas, they just snapped. that's all.
In my case (and knowing that Geist wouldn't give a rat's backside about the problem) I repaired it by using an aluminium 'slat' (about the width of three conventional slats) which I covered with self-adhesive 'velvet' material on one side (to avoid any condensation issues)
I have to say that I'm very proud of the result (do ask me to post a pic, please π and feel that the finish (I also used a nice brushed aluminium trim) is vastly superior to the original factory effort -
Total cost - about