We have a client tied to Filemaker, and it's not something we have dealt with before.

Their developer is a pain to deal with.

Is it good enough we should spend the client's money to integrate their new e-commerce website, or develop another database? We only need the store location locator and it's been pulling teeth to get any assistance from the development company.

Edit to add:  It's Filemaker 16.

Just curious as to what version you're talking about. I see screenshots for legacy Mac OS, Mac OS X, and Windows 95/NT4.