I've done trekking bars and I've done albatross bars. Both are okay. I don't find that I like grabbing the a-bars at the bend too much. I was counting on that as a 2nd hand position, and I use it, but the curve is too much for me. I've been thinking I may want something that comes out straight from the stem, and then angles back sharply. The curve and sweep of the a-bars is more attractive, but isn't very comfortable to me. However the primary hand position is very comfortable.

The trekking bars definitely have more usable hand positions, which I like, but not one of those hand positions are as comfortable as the primary position on the albatross bars. Right now my back-up bike is wearing the trekking bars. They do the job, and I've taken some longer trips with them. Right now they are have won out over other bars in parts boxes mainly because they allow me to lean further forward than any of my swept back bars.

As far as brake/shifter compatibility, just pay attention to the diameter of the bars and brakes. I don't remember any issues, but I never had drops to transition from. I do know that because I use a grip shifter, I have very limited mounting options on the trekking bars. I also cannot slide brake levers around the bends. If I wanted to position my levers anywhere other than near the open section of the bar, I would need levers with the multi-part handlebar clamp.