Letting a Web Content & Experience Management (WCM) vendor also serve as your general integrator is generally a bad idea....
Excerpt from the Episerver: Episerver evaluation:
"Note that while the vendor has international ambitions, the availability of third-party and peer support is primarily centered in Sweden and the Nordics. The company has only recently developed a noteworthy North American partner channel, rounding up more than 750 partners worldwide -- though their experience with the tool will vary...."(P. 452 in the Web Content Management Report. )
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