Bests & Worsts Reviews from Amazon

My vary speed Dremel stopped working after 20 yrs and it was time to get a new one. I took a chance on this because of the included flex shaft and the silly low price. After I ordered I decided to pull my Dremel out of the garbage and just see if I could fix it. I did. Now I have two rotary tools, so which one do I use? The Wen. It is much quieter and I love the flex shaft, in fact I keep it on at all times. Time will tell if it holds up like the Dremel. EDIT: I've noticed some reviews stating the lack of instructions...really? It spins, you put attachments on it, what more instructions could you possibly need?