Don't waste your money.
We have one sitting on the table. Used it for a bit of fun the first day, and hasn't been used since. Handy if you want to hear a particular song at any given time, but no use for quizzing. Stick with the laptop!
If you’re on the look out for one, but not in any rush you should sign up to a deals or freebies web site. I got a 4th generation (no idea what that means) Amazon Echo Dot (don’t know what that means either, but it came in small box) for 99p (plus one months music subscription) for boy #1.