I LOVE this thing! It's the perfect, compact gadget when you have had a rough day, or have spent entirely too many hours on your feet.
You fill the basin with warm water, add some epsom salt if you want, and allow the warmth, bubbles, and even vibration if you want to sooth away the day!
It's not big, so it doesn't take up too much room in my house. It's not terribly noisy, though I have heard units that were quieter. It's easy to use, easy to clean, and easy to figure out. I didn't even need to glance at the instructions. There's a knob at the top of the unit that you can just click over to whichever settings you want (yes to bubbles, no to vibration, yes to added heat, etc.).