d it is O.K. for a WordPress tool. I think they will add Infusionsoft integration one of these days. Things like AMember are just crude work arounds in this day.
Try Digital Access Pass - DAP
(my affiliate link). It's excellent at handling about anything you can throw at it. I don't trust Infusionsoft, I believe they are overpriced for what they have, and 'not that good' at doing what they say they can do, that's my opinion.
You can see Digital Access Pass (DAP) at this page:http://www.digitalaccesspass.com
All of the tools/software I recommend are on this page:http://www.xsitepro2webtemplates.com/Resources.php