My single issue with Verizon Messenger+ is that when composing new messages by name, ALL contact information is displayed including, land lines, fax numbers, email, etc. This is totally unnecessary in an SMS app and makes usage much more cumbersome than necessary.
Please follow the lead of other, similar SMS apps and include an option to display ONLY MOBILE numbers. It's such a simple thing but has a huge impact on real-world user experience.