Internet and Cellular Service (I need your help)

I am on the road a good bit and my business needs constant daily attention. I have been trying to decide the best method of using Internet and Cellular Service to do this. I emailed this question to Wilson Amplifiers (a manufacturer of cellular equipment)for their suggestion as to what I need. Their suggestion was this: Wilson Mobile 4G + 50 dB Amplifier Kit - 460108.

My question is this: Have any of you out there in the RV world used this equipment? If so, what has been your experience? Also, if you can offer something better, please do.

Thanks. I certainly appreciate your input.