Is Upgrading to a New Water Heater Worth the Investment?

I’ve been dealing with inconsistent hot water lately, and I’m considering upgrading to a new water heater. I found some information on water heater services and wanted to ask if anyone here has upgraded recently. Did it make a noticeable difference in your water temperature and energy bills? I’m curious if it's truly worth the investment, especially for long-term savings. Any insights or advice would be appreciated!