Pros:
Flip City/Idle Wild...been there...and they're awesome....however...test your game and be HUMBLED at Oshetmo. The course from the Ams is awesome and scorable...but....the longs...my opinon...it is the Most Competetive (not Toughest) course I have ever played....
Here's why...
1) Many Holes just long enough to challenge every player in the game.
2) Nearly flat ground
3) Somewhat narrow fairways
4) Roughs are so thick, you may just want to toss out safely and take the stroke...or chance it and add two or three more.
5) Luck is a major factor that plays into nearly every hole
Most difficult courses...I have played...have long holes...big scenary...major challenges...elevation issues...etc....
You want success at Oshtemo....Tee shot placement is critical....fairway shot critical....if you have the chance to putt after the first two shots...critical
Never expect a "birdie"....and ALWAYS Play for par on 4, 5(my opinion toughest hole which ironically looks easy), 7, 9, 10, 11, 12, &14
Next....Do not underestimate 1, 2, 3, 13, 15, 16, & 17(all birdieable...but beware....very boggieable too)
Good luck squeezing birds out of 6, 8, & 18
Cons:
College kids and disc golf ettiquette do not mix....spring time before WMU gets out is probably the worst time of the year...the same in the fall when they come back to classes...these players are generally terrible...may be (overly)intoxicated...and come with women (bless their hearts...but generally are bad too)...and have never heard of doubles or scrambles or letting smaller groups play through....questionable days are good indicators you will run into less of these morons who are bored of playing beer pong...and would rather come out and play only to slow down your round....which is sometimes best played when you have a rhythm going on.
Tons of places to lose your disc when the roughs are grown in....that does not mean to shy away from your shot...commit...and watch closely where your disc goes if it is not on the fairway.
Other Thoughts:
I always tell my buddies who come from all over the state of Michigan and elsewhere...when you think you have your game put together....put it too the test...Oshtemo demands your BEST play...just to shoot even....
If I were in course designing....Oshtemo's layout style is something to take very seriously when trying to create just the right course for players who think they have "been there and done that"
I am sure many descent players can make "the shot" on many of Ostemo's challenges....now just put the complete round together....and you will see why it is easily in my top five in the nation