Disney Polynesian Transportation ?

We are considering the Poly this year - I'm wondering if the extra expense is worth it for transportation convenience. I know it is near the transportation center to catch the monorail to Epcot, the monorail is on the front of the resort for MK as well as a boat launch. Buses only to HS and AK. I've heard the buses were very slow and crowded, often having to wait again because the buses are shared with the GF and Contemporary? We will be there late July/Early Aug. so it will be summer crowds? If you have stayed here during that time of year please advise. The second choice is AKL with only buses but we have stayed there before and it was efficient as not shared buses.