Except for the light and takeoff, it looks just like my very first saw which was a Dremel. It uses adapters to use plain end blades and an allen Wrench to mount them. On average, it would take me two minutes to change from one hole to the next. The accessories on this saw are to make a crappy saw more attractive!
Unless you have very small hands, you have to remove the dust port cover to access the bottom clamp. In order to mount a fresh blade, you have to remove both clamps and mount them in a recess in the top arm, then mount the blade to the clamps. Then you mount the clamps and blade into the saw. Very time consuming! Unless of course you use pin end blades.