-Training: The product itself is complicated, not to mention the home-grown CRM. The week-long training in CT is confusing, and for the most part AE's have to re-learn everything when they get to their home offices. Also, the person who conducts the sales trainings has never been in sales.
-Lead-Gen: There is none. Don't come into the role expecting for leads to be handed to you. Plenty of AE's (myself included) do the job, find leads and hit numbers; it's not impossible by any means. Some say that the market is over-saturated, and while it is definitely difficult to find leads, it's also part of the job description, so I don't necessarily think it's a justifiable complaint.
-No Room for Growth: I think that this is the primary reason for the turnover. Most of the talented and driven employees leave simply because they are ready for a bigger opportunity, and Indeed doesn't have any available.
Bottom Line: This is a sales job without lead generation. The people are great, the product is awesome, but the job is not for those without a strong work-ethic.