I've been invested in the "Apple Ecosystem" for years now, and in all honesty, I really do like it. Granted, I only have a macbook and an iphone, and I like that combination.
However, when it comes to tablets, I could never recommend an iPad. Never. Literally, they're just a bigger version of an iphone, with equal functionality.
If you're looking for a good tablet replacement, really, any Samsung device will be good. They can be bought second hand for a decent price as well. I also like the Microsoft Surface, however, that's more os a Tablet/Laptop crossover type thing and they can be quite expensive.