I would highly recommend the Grainfather. If you're going to take the leap, please make sure you get the latest model which comes with the new Bluetooth Connect box. You can build your own recipes and save them in the Grainfather app. It makes brew days really straight forward as the GF tells you how much water to mash with, how many litres to sparge with and also beeps to remind you on hop additions.
I went from a cool box mash tun & burco boiler to the GF and haven't regretted it one bit! Just the fact that when cooling the wort at the end of the boil, you can run it straight into a fermenter. It still amazes me that it goes from 100C down to 25 - 30C by running through one hose for a few seconds :)
P.s, if you have the funds, also buy a Graincoat/jacket, Hop Spider & GF cleaner. from start to finish (including cleaning and packing up) it takes me 4 hours to brew, with no stress!
Either way, what ever equipment you buy/use, you will always drink the beer you've made.