Classy Cufflinks review for Synder

It took ConnectBooks three weeks to onboard us. The difference in support was a chasm. ConnectBooks have the ability to map products between QuickBooks and your marketplaces with a simple excel sheet - like every other application. Synder do not have this facility, we worked with their technical team but they were slow and provided incomplete mapping and support - more so they did not deliver what was promised, only 10% (enough to fill a screen). ConnectBooks focus on payouts which is all that is needed - no more gazillion new customers interfering with our wholesale business. We asked for a refund of some of the fees we paid so that we could pay the data for our ConnectBooks implementation but they refused. Initiated a credit card dispute. I am disappointed with this experience, I see many good reviews here but recently some very negative ones. I believe this is an account management issue with a specific account manager that needs to get fixed and made right by Synder management.