Ahrefs vs Ubersuggests?

I have trialled Ahrefs with their 7 day trial. I have been impressed by the metrics and keywords in which they suggest. So far, I have managed to achieve a first page ranking with a low KD keyword which I found using the tool. My question is: should I purchase a subscription for the lite version of Ahrefs (which is alittle out of my budget) or try an alternative such as Ubersuggests, which is considerably more affordable. I have noticed from trialling ubersuggests that the KD score and volumes are inconsistent to that of Ahrefs. Does anyone have any experience with using this tool on the 29/month subscription?

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Thanks in advance for any insights.