I am a beginner wanting some advice on the most affordable way to sharpen a straight razor.

I am getting this razor:

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The excellent salesperson I purchased the razor from said this:

"If you only own one razor (especially a nicely honed, new Dovo razor like this one), I think purchasing hones to do touch ups is overkill. I would recommend purchasing a linen strop and some chromium oxide paste. This is excellent and affordable system for doing light touch ups on your razor. It will only cost you around $20 and can keep a great edge on a nice razor for years."

I just wanted a wider opinion on this - would the suggested method last long and be comfortable to shave? How does it compare to other options such as sending the razor to be professionally honed or purchasing some hone stones to hone myself. What is the best affordable quality ratio?

Thanks for any advice in advance!