It's a bit clunky.

Meaning

It's awkward or difficult to use.

Examples

• John: 'This software is quite cumbersome to use.'
• Alice: 'Yes, I find it <b>a bit clunky</b>.'
• John: 'I agree, it's <b>a bit clunky</b>.'
• Alice: 'The interface of this website is difficult to navigate.'