Myself and thousands of other users have been using it for years without a problem. However,
if you prefer to pay, then that is your choice.
Does the IP number get changed so often at the remote site that it is critical? Do you have a router
at the remote site that has Dynamic DNS built-in, e.g. No-IP which is also free? That can be used as
a fallback if that is your concern.
73,
Mitch DJ0QN / K7DX