Almost 5 STARS. absolutely great add-on and easy to use. two issues:

1. The alert sound effect is so annoying and there is no option to either change it or disable it!

2. I'd like to set different price notifications for one Crypto but unfortunately you can't use the same Crypto multiple times and give them new prices.

I haven't noticed any suspicious activity as one of the users claimed and it seems like it's been 3 years since the last update. if there is any further updates in the future I'll update my review/rating.