I was brought there for lunch by a Penangite friend who’d been going back there for years. I’m not used to Cantonese dishes with a Penang slant, so wasn’t really into those dishes, having lived for 5 years (2011-2016) in Kuala Lumpur where the Chinese populace are mainly Cantonese, and the Cantonese food there is stupendous. Ditto Ipoh, a largely Cantonese, which I visited on food-hunting trips frequently. Ipoh’s dim sum are the tastiest in Malaysia, IMO.
Penang, like Singapore, is largely Hokkien (Fujianese), with strong Teochew (Chaozhou) influences. So, Cantonese cuisine is not really a strong suit in Penang.
At Yee Heong (we were there in mid-Dec last year), we ordered two noodle dishes (sang mein and sar hor fun).
Yee Heong’s sang mein was not as tasty as the version I had at Tho Yuen [Penang, Malaysia] Cantonese noodle dishes from 𝗧𝗵𝗼 𝗬𝘂𝗲𝗻 Cantonese restaurant, Campbell Street
Sar hor fun is a Cantonese dish done very well in Penang by Cantonese hawkers. The version in Yee Heong also could not be compared to the wonderful versions one gets off the streets (e.g. the one at Beach Street [Penang] "Sar Hor Fun" & "Yee Fu Mee" at Beach Street)
So, overall, I think I’d stck to dim sum at Yee Heong rather than its cooked dishes.