I have a collection of tools from different brands- Festool, Bosch, Fein, Mafell and Metabo.
Metabo has some good stuff, especially their angle grinders. Which is what made me try their drills aswell, as I heard some good stuff about it.
I have the Metabo BS18 LTX BL Quick, which is their brushless, non-hammer drill. So far I like it very much. The reason I went with non-hammer is that from past experience, drills with the hammer function rarely gets used for drilling in concrete. I have a rotary hammer drill and use that for drilling concrete instead. The correct tool for the job. Concrete is brittle but hard, so the way to drill in concrete is to have hard impacts with a rotary drive that clears the chips. However, if you want a high impact hit, it requires more weight on the drill. I don't want to be carrying all that weight around when all I want to do is drive screws. From past experience I haven't had a single combo-drill that has had enough impact force to hammer chips from the concrete satisfyingly fast, because like I said, to be able to do that, the combo-drills would weigh a lot more. Also, the hammer part of the drill will increase the size of the drill, which makes it's harder to reach in tight spots.
Anyhow...
The build quality is good and battery life amazing. It can change chucks similar to the festool counterparts, but I feel Metabo is a better system. The metal chuck is very good quality, the bit holder is metal (made by Wera I think), and the angle adapter is on par with the festool one, but gvcan be clamped in any direction. It also has an extra chuck which is 3-1gear, so it has 3x more torque. I don't have it because I haven't needed it yet. The balance feels very good and it's comfortable to hold. Also, it's very short without the chucks attached.
The LED light is surprisingly powerful, and lights up the room well if it's dark. It also has a vibration sensor, so if I bump the table it sits on or drop my hammer on the bench, the lights activate before I even pick the drill up. It's suprisingly accurate when turning itself on before I reach for my drill, and not when I'm not going to use the drill. Don't know how they do it... Also it lights up for a while(15 secs?) after it has been activated, which I think is good. It has such a good battery I don't really care if it lights up more than needed. And all things considered, this is the first time im really pleased about a tiny LED light.
Metabo offers Tanos cases - same as Festool, but they have also come out with a new case called Metalocs that seem more rugged in every regard, and can mount to both the classic and the T-systainer.
The accesories from festool will also fit the Metabo (but not the opposite way). I have the CSX, and I can use the Festool bit holder as well as the chuck on my Metabo. The angle adapter for my CSX doesn't fit on the Metabo, but I think the bigger angle adapter on the PDC will fit. Also I can use normal bits instead of having to buy into the Festool centrotec system.
It has a lot of power and the battery lasts. The past week I used it to mix about 300L concrete. (Should probably have used a concrete mixer)
It also has a feature called Impuls. Some say it's a gimmick but I actually find it really useful. It's great for removing stripped screws, drilling into tile (or other slippery surfaces) while remaining control.
I read some complaints about the gear selector sliding into neutral by accident, and I find this to be not the case at all. I have to push relatively hard to on all the switches on the drill to change settings.
If it says something, Mafell has licensed their new drills, so if it's good enough for Mafell quality, it's good enough for me.
Metabo is designed and manufactured in Germany. Their batteries are made in hungary.
I'm thinking of getting a battery hammer drill though. Not sure if I go Metabo or Festool.