Been a Prospectin user (from the same developers) for more than a year, before Walaaxy came into the market, and really loved that product too. I have tried a number of tools in the market for Linkedin - but Walaaxy scores far above the rest mainly because
-It has a mini built-in CRM which is a superb,
- there are a lot of well-thought pre-built automation flows which include email + LinkedIn so your chances of getting in touch with your potential prospect are pretty high.
- the tagging option is super useful too
- you can create subfolders and target each group of Leads individually...
- above all, it is pretty safe to use.

I think it's definitely worth 5 stars