David,
thats a very wise approach and funded response.
I could perhaps just add that having to pay for the soft should in no case be a reason for degrading it, when we are speaking about let's say symbolic figures, just few dollars for any paid firewall.
What diverted me from OP (about 2 years ago, do'nt even remember the version) was the fact that they were using access database to store logs, which I found rather unprofessional. Now I am with OA, paid version, quite happy and certainly very secure behind it.