I've had my Natural finish Casino now for about 3 years, but it wasn't my first. My wife bought me a Cherry Red Casino for my birthday that year and it was impossible to do a proper/standard setup on that guitar. The guitar was just not properly made and should never have passed QC (although it looked beautiful). So I returned it for the Natural one. The Natural one setup easily and played well. However, it wouldn't stay in tune, the bridge rattled, the guitar was producing way too much sound from behind the bridge, and the P-90s didn't sound like P-90s. The P-90s were way overwound and measured 16k ohms passive resistance (about double what they should have been). My Natural Casino was MIK.
I replaced the tuners (real Kluson's), bridge (now a roller bridge), tailpiece (now a Bigsby B7), and the pick-ups (Kent Armstrong P-90's). This Casino is now a very good guitar.
Here's my point. When it comes to guitars, each guitar will be different even if they are back-to-back off of the assembly line. Each guitar will need to be evaluated individually, not by model. Some are really bad (like the Cherry Red Casino my wife bought me) and some are near perfect. Generally, the lower you go in price, the more you have to worry about QC. For instance, you are less likely to get way off spec pick-ups from a Gibson than an Epi - but you still might. On the other hand, you can find some real jewels in low and moderately priced guitars. For the money I put into my Casino plus what I paid new, I have a very, very good guitar. Another example is my son's Mexican Strat. I paid $300 for it new about 8 years ago. It played very well stock. I changed the pick-ups and saddles. His Mexican Strat now plays better and sounds way better than my American Standard 50th Anniversay Strat. The wood in his Mexican strat is way more resonant than my Strat.
If you get a Casino, just make sure it is made/put together well and decide what you need to upgrade, if anything, afterwords.
Good luck,
Greg