Honestly, no. Those saddles do not look good at all, sorry :( They look like some sort of a really cheap, glorified bareback pad. I don't trust any saddle that claims to be able to fit any horse - especially not brand new for considerably less than 100 bucks. Chances are, it won't fit any horse, isn't well balanced and will just be a waste of your money.
You'd be much better off saving your money and purchasing a saddle that will specifically fit your horse or the horse you ride.
In all honesty, if someone has truly invented a saddle that will fit ANYTHING they'd be selling it for the big bucks in partnership with a quality company - not for dirt cheap on ebay
Please save your money (and your poor horse's back) and wait until you can buy a decent quality saddle made to fit the horse you ride.