Pros:
Nice setting in the woods and relatively easy to follow. Also, scorecards/maps available near the first tee.
Cons:
Tee signs lacked maps so knowing where the baskets were on longer holes was difficult. Also, some wooded holes lacked a defined fairway which made shot placement/planning a challenge.
Other Thoughts:
Great Seal had a decent mix of holes with a few open shots, many wooded holes and some with really tight fairways. Having a friend spot would be recommended as there is some really thick rough to be found in a few spots and the longer wooded holes will often have you throwing around a corner or up/down a hill with the landing not easily seen from the tee.
I can't say that I found any one hole to be an epic, stand out hole. There were definitely some fun holes to be played but overall nothing terribly memorable.
Things that would have helped this course are some more informative tee signs. A little map on there to give you an idea of where to throw would have been really nice on many occasions. Some indication of where the next teebox was would have been really nice to have as well. Also, I mentioned the lack of defined fairways on a few holes in the cons. Maybe that is supposed to add to the difficulty (and it certainly does) but it does so at the expense of making the hole less fun/interesting.
So.. the question comes down to should you play this course. There are a lot of faults to be found but if you generally enjoy wooded courses, it's probably worth your time to stop. I doubt the course will blow you away but it won't necessarily leave you disappointed. If you tend to gravitate towards more open courses then I'd definitely take a pass on this course. There are a few holes you might enjoy but they're probably not worth a long trip.
If you only have time for one course in this area, I'd recommend driving the 17 extra miles to Pike Lake. If you don't feel like the extra drive, this certainly isn't a bad course and is quite good in a lot of respects, just don't go in expecting an amazing AAA course and you won't leave disappointed.