If you don't have any taste, you could work with someone who does have taste to do the interface design. Or you could copy popular patterns and designs, but that might lead to a worse experience if you copy the wrong things, or try to bend your project to fit a popular design that doesn't quite fit.

If you like it the way it is, then guess what, you do have taste, tell them to fuck off and just keep it the way it is.

The difficult part is being honest with yourself about why you like it the way it is. If you do honestly like it for what it is, then others probably will too, no one is really that unique. If you like it because you put a lot of effort into it, then you're just letting your emotions lie to you.