It's a bit clunky.

Meaning

It's awkward or difficult to use.

Examples

• John: 'This new software interface is confusing.'
• Alice: 'Yes, it's a <b>bit clunky</b>, isn't it?'
• John: 'It's a <b>bit clunky</b>, I'd say.'
• Alice: 'I find the controls on this device rather awkward.'