I'd recommend renting in the area for a few months first. The nightmare stories of condos charging fees if some tenants are gone, shoddy construction, deteriorating over time, noisy neighbors, etc.......Rent, walk around at night, snoop on everyone, and then go with your gut. I thought I would buy a condo in a big city when I could retire but after all these years that will probably not happen. never say never....if it's "perfect," then you gotta buy.
Local guide, years ago, said Laem Chabang Towers was only two stars. Yea, read all the reviews. 3.9 on Google isn't high enough for me to even consider, since a lot of 5.0 are fake already.