As it happens I met up with a friend at that apartment a week or so ago. I had not been up to Poinciana for some time & was amazed how the gardens etc had grown up beautifully. You are very centrally located with equal distances to the Marina & the Resort. Set back against the hill, you are in a great position to take in the panoramic views over the Main Resort to beautiful Catseye Bay with Whitsunday Island in the background.
Located up one flight of stairs...
#107 is what most hotels would describe as an executive one bedroom apartment. Fully self contained with lots of really comfortable furniture to lounge about on. The bedroom with its kingsize bed is wonderfully spacious.
I can see you both spending lots of your time sitting on the great balcony soaking up the views & listening to the wonderful bird life.
The construction site that you may have encountered on Google Earth is perhaps the private house that is nearing completion....way up behind Poinciana. It will have little or no affect on your apartment or holiday.
Hope that puts your mind at ease.