Virtual Private Networks

Most Virtual Private Networks (VPNs) encrypt their traffic to make it secure. Imagine that you are working for a company that has asked you to examine the various types of encryptions. The company has asked you to choose the one you would recommend. 

VPNs are used to establish a secure remote connection. Write a 1-2-page paper examine whether they are totally secure and if not, what additional features would make them so. Would you use a VPN to establish a remote connection with the hypothetical company you are working for? Why or why not? What type of encryption (encryption method, # of bits) would you recommend and why? Is there a standard for encryption on which you can rely?