I'd watch out for Sub-Zero. I have been researching appliances and found this Consumer Reports article that mentions they are one of the most repair-prone brands.

Here is a link that might be useful: Consumer Reports Reliability

I had a Sub-Zero 211 for 23 years before it gave out (it was fixed one time at about year 17). Don't think that's repair-prone but repairs are very expensive--you could buy a new regular fridge. I would never get a built-in fridge again because you just can't change it out if it breaks down. It has to be removed by technicians--another huge expense. I got the freestanding 30" Liebherr which fits perfectly into the old S-Z 211 space and looks built-in. I love the Liebherr. So far no problems, but have only had it 9 months. Sub-Zero does have great customer service, so if you can afford it, go for it. It only matters that you're happy with your choice.

Go with GE Mono---

Liebherr makes a respected 30" both freestanding and built in.

Here is a link that might be useful: 30

Jenhue - CR is not the most authoratitive source on low volume luxury appliances. Their readership (on which their reliability reports are based) doesn't buy them in large enough #'s to make an accurate sampling.

dsommer- Monogram has no 30" offerings.

alex- the Liebherr doesn't have a pullout bottom drawer, might make a difference to the OP has it's something he/she requested.

The reason why SubZeros may have a "high" repair rate is that they are typically repaired rather than thrown out!

We've lived with multiple SZs over the years, & those that needed a service call have been more than 15 years old. I would love to get that level of service from other things we've bought.

I can't think of any reason not to get the SubZ except for cost. My 680 is at least 6 years old and there isn't anything for me to complain about.

I had a 511 - 18 years old at the time of my remodel and still going strong - that I considered replacing with a 611 or a 30" Liebherr Built-in. I went with the Liebherr only because I liked the bottom-freezer door with clear drawers inside better than the wire basket in the SZ that always drove me crazy with small things falling through and the fact that it was basically one large deep drawer that I constantly had to dig through. Perormance-wise, I had no issues with it at all. One sevice call at 16 years, which cost me $163. I think it's worth the money if you like the way the space is laid out.

Well, to be fair, my folks' first SZ (mid-1960's) only lasted about 20 years and required several service calls, plus my father fixed small things a couple times. I don't know how that stacks up to other fridges from that era. The current version is over 20 years old and still going strong, though I think it has been serviced at least once.

My Kenmore is 21 years old, has moved 3 times and has never needed service--except the light quit working more than 10 years ago but isn't worth fixing. On the other hand, the crispers are a joke, stuff against the back wall freezes, as does the water and OJ on the top shelf. It's hard to clean, and spills drop through the wire racks. It's not bad for what it is, but I'm tired of planning around what the fridge will and won't do and look forward to getting an SZ, even knowing that it might need to be repaired sometime in the next 15 years. It's like a fancy new car vs. a reliable beater. It might be more expensive, more persnickety, need more repair, but it's also a lot nicer to have around, and works a lot better when it's in proper working order.

We have had our 611 for 20 years and the freezer compressor just died. we love ours.