There are a number of these "no name" keyboard/case combos available from sources like e-Bay. Unless someone happens to purchase from the same e-Bay seller as the one you're looking at there's little chance that anyone can tell you if they purchased exactly the same brand/model. From the user reviews I've seen here and elsewhere many people are satisfied with their purchase, at least initially. On the other hand there are several points to keep in mind.
() One usually gets what one pays for.
() Keyboards are mechanical devices. It's no trick to make a cheap keyboard that lasts for a little while and fails in one way or another under extended use. Remember that the failure of a single key usually makes a keyboard useless. And if it does fail, to whom do you return it?
() The combo iPad/keyboard cases almost without exception have reduced size keyboards, a design that stems from the fact that the keyboard can be no wider than the iPad. If you're used to a full size keyboard or even the keyboard on an 11" laptop, the keyboard may well be difficult to adjust to.
Personally, I find a good keyboard indispensable. It's for that reason that I prefer to stick with a known brand such as Logitech, Apple, or Targus. In my case, I use an Apple Wireless Keyboard combined with an Incase Origami Workstation and carry both the iPad and the keyboard in a Travel Express case from Waterfield Designs. (
Need a case or bag for your laptop, tablet, mobile device, smartphone, or gadget? We've got you covered - WaterField Design - Made in USA.) There are less expensive alternatives (including one from Logitech) that I suspect are equally functional but I would not purchase a keyboard from e-Bay from a vendor I don't know. YMMV.