Despite it only being described in Thomann as a 3 guitar stand, as soon as you unpack it, you realize that more would easily fit in. In fact, in the recommendations associated to this product you'll find the Hercules Stands HCHA-205, which does just that. According to Hercules 6 guitars should fit, and I for one, believe them.
This thing is super stable despite not being overly heavy. I do have two minor issues with it and therefore not able to give the 5 stars. For one, it's pretty vertical in the back, which means you have to make sure it doesn't stand against a wall, or your guitars' headstocks will hit it. Although this is kind of a non issue (just move the stand), it could have been, maybe, incorporated in the design.
Second, the holders are rubber, which is great. For the more paranoid in you, you might've wanted some sort of foam cover (as I had in some wall hangers in a past life). Time will tell, but I had experience with rubber becoming sticky due to temperature and/or humidity changes (something I can control but not avoid in my house). Sticky rubber tends to catch dirt, which can become a bit of a nag. But again, that's my very paranoid take.
With all that being said, I'd still recommend it and am pleased with it.