It appears to be a just a run of the mill drip type coffee maker that uses cone type filters, not that there is anything wrong with that at all. If it's working and pushing water up and thru the coffee and the hotplate on the bottom is keeping it hot there's no point in buying a new one unless you just want something that looks a little fancier, or has a clock, or auto-shutoff etc.
More important is the actually coffee that you put into the machine, Awful tasting coffee is going to taste awful no matter what coffee maker you brew it in. .
Find a coffee you like and buy it and play around with the amounts you add.
You could also invest in a little electric coffee grinder, they're not very expensive at places like Target etc.. 10-20 bucks. Spending a lot doesn't guarantee good results.
Personally my favorite and current drip coffee maker is the Hamilton Beach Brew Station 12 cup model..because there is no carafe. It brews the coffee inside and you just press your cup up to the button and it pours directly into your cup.. It's super easy to clean, super easy to fill with water and no glass carafe to break. And it has a clock and a few settings you can adjust. all for around $50. I got mine on sale for $38. I think they make a smaller model as well. It was also surprisingly a top rated coffee maker in Consumer Reports last year