Samsung Galaxy S III (CDMA)

Sprint S3, did anyone have a trouble activating their s3? I had so many issues with the setup. I activated one no problem, and the other had different errors that turned into 2 weeks later causing issues with the exchange server not syncing emails with push notifications setup. I sent a test email, and had to manuel push it from outbox to sent. I wiped the phone, but concerned it will have more issues in the future.