Looking at a mattress from costco

My wife and I are in the market for a new mattress. We have been looking heavily at the https://www.costco.com/kirkland-signature-by-stearns-%2526-foster-14.5%22-lakeridge-mattress.product.4000277076.html and this adjustable base: https://www.samsclub.com/sams/shop/product.jsp?productId=prod24380761&mobiledetect=false&pid=092410_RFI|ANDROID|Featured_Products|Member's%20Mark%20Adjustable%20Base

I am around 250lb/side-sleeper and my wife is 200/side-sleeper.

Anyone with similar stats purchased this mattress and what are your thoughts?

Thanks