I think your friends made the right decision. If the time spent prepping a rebreather is too much then exiting the sport is probably a wise move.
How much time do you want to spend on your unit?
I dive a Mk15, not the simplest on the planet. It takes about 30min to prep including gas then it's good for anything to 100m. And generally a couple of days diving. A twinset of nitrox, including fills, is going to take 2-4 hours for me.
My KISS was very easy to rig. It'd take a hell of a lot more than that to get me to buy another. A good unit but I wouldnt base my choice on speed of assembly.
My opinion, you've got your priorities wrong. There is no rebreather on the planet as good as the sales brochure, the time spent making sure my lump of stone age technology has the least likelihood of killing me seems like time well spent. As the old saying goes, slow is smooth, smooth is fast.
I still think this is a pointless question.
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