Suggestions for a rollup tonneau cover?

Help!

I am trying to decide about a tonneau cover.

I have always had a shell but now am thinking a tonneau cover is the way to go.

I am looking at a rollup and am thinking of the BAK revolver X4 or the Truxedo sentry cx.

I also looked at the sliding cover in the Retrax xr pro but the cost as significantly higher.

I do want to have access to as much room in the bed as possible.

Suggestions would be greatly appreciated.

 

I have a BAK RollX. Previous roll up generation from BAK. Great product gets out of the way when I want access to the whole bed. However, the vinyl cover started cracking after 6 years. I should get 10 years before replacing. Not sure what I will replace it with.