Prime Corporate Services?

[Chris Virgil-Stone]

Has anyone used Prime Corporate Services (PCS)? My partner and I set up a legal entity with them and are considering using their tax services - one time set up fee of $3k and $65/month retainer which includes annual K-1s (2 partnership LLCs) and personal returns for both partners. Seems almost too good to be true. Most CPAs want ~$1k/ filing so $4k in total.