ForTheFight:
I am interested in getting a full face mask,...
Why?
ForTheFight:
...they look more comfortable and the divers I know who use them seem very happy with them...
These are subjective perceptions and you'll see many divers who seem very happy with all sorts of bizarre rigs.
I'm not intending to dissuade you from getting a FFM at all, but as a solo diver there is a process you may want to consider before doing so. Answering the question "Why?" is a big part of it.
Each time you want to make a radical change to your rig, ask yourself what specific problem you are solving. Then think about the potential problems you're creating for yourself. Quite often you may conclude that you're creating more problems than you're solving.
As a solo diver you already are out on the edge in terms of emergency response. Each crisis is a "come as you are" situation - there is no one else to assist.
As a solo diver it's generally a good idea to keep your rig as simple as possible, generic with respect to onsite repairs, replaceable if you travel and/or lose an item enroute, and universal so that "non-buddies" who may be able to aid you should you be discovered in distress during a dive will know what to do with/how to manipulate your equipment.
FFMs are none of the above.
FFMs are excellent for use under certain circumstances, but
solo recreational diving wouldn't be one of them IMHO. One of their big benefits is communications, and in your case there isn't anyone else present to communicate with anyway.
Read what these other users have said again, and really consider whether a FFM would be the safest, most practical, most cost-effective item you could possibly add to your rig?
ForTheFight:
Work gives me access to ScubaPro line for very little.
If you work for Ron and Dori you may be able to borrow one before you purchase. Same may be true for Marty or Ron Pitts. If you're still convinced this is a good thing, I suggest you try before you buy.
FWIW. YMMV.
Best,
Doc