The digital hearing aids would be better than your old hearing aid. There are more best manufacturers such as Phonak, Starkey, Oticon, Widex and so on. So according to the guidance of your audiologist you can select hearing aids for better hearing.
I have been wearing a Costco Kirkland Signature 5 digital hearing aid for a couple of weeks and love it. I have follow up adjustment/programing scheduled but I'd keep these aids even without any improvement in hearing. It has a hand remote, smaller than most cell phones, that allows several adjustments that can be made with a push of a button or two. I went to Costco because of good ratings on blogs and lower cost. A pair with generous warranty and replacement insurance was $1899 for the pair.