Pros
The only value add of memoryblue comes from the exposure they give you to OTHER companies (which if you are not a new to sales is irrelevant) and not from their "training" which is non existent. There also is a bit of bonding between the SDR's for suffering under memoryblue but that could be done without. If you are blessed with a decent account consider yourself very lucky and try and be hired out ASAP!!!
Cons
(not enough space to write it all) Immoral practices and situations where management will plot and manipulate the SDR's to change the narrative and fool employees into keeping the machine running. The careers of employees are handled carelessly by management to save a couple dollars or keep a client happy for the short term before you can be replaced. Employees are looked at as line items and the moment you are no longer profitable or pushing the "kool-aid" then you are gone. Which adds to the distaste for management as they are cut corners in sales enablement tools and equipment. Old refurbished computers, disgusting kitchen with moldy cups to reuse at the watercooler and shared vendor accounts amongst SDRS.