I think the awkwardness would be temporary as I remember my early attempts with a rotary cutter.
The cost would be a factor but I do believe you get what you paid for AND I would not scrimp on any cutting tools.
I would not buy this tool because rotary blades scare me. I love my retractable rotary cutter and I would find it difficult to use a tool without a retractable blade.
This cutter would be handy for someone that does a lot of cutting strips, or has hand difficulties which make cutting difficult ... fortunately that's not me!