Those items, together with another item called ‘clear design’ feature in the additional scale intended to measure ‘usability’.
It should be appreciated that Lavie and Tractinsky’s two aesthetics scales were published nearly a decade ago and that they, together with Hassenzahl’s (2004) scales, marked the first serious attempt in the HCI community to measure aesthetics such that concerns for visual aesthetics could be readily distinguished from traditional performance-based usability.
The aesthetics-related scales have provided an excellent start allowing HCI researchers to delve more deeply into these complex concepts; they have served us well since their publication and have contributed to much fruitful research.
Our next step now should be to conduct research aiming to resolve the unfortunate confusion about the conceptual overlaps between aesthetics, especially classical aesthetics, and usability.