I would say its worth it if you use it. Like the others here it can help get an average print on the first exposure or set up to get the desired tone on the first try. Personally I only do B/W and have tried a meter in the past, a probe on U45, and various iPhone apps. End result is I don’t use one and instead use fstop timing from a chart, usually note a midtone at exposure, and I waste a sheet from each box to confirm it is consistent with last batch by exposing a step wedge. I don’t do densitometer just eyeball it. I have baselines for all papers I use and developer. Been doing it for a while 40 years and can pretty much get a good print on first try just from looking at negative. I also don’t add many variables any longer. Still don’t deprive yourself of a new gizmo if you have the money. You can always sell it if not part of your workflow.