A lot of people here love their slow-cookers, but no one ever mentions the brand they use. I've never owned one, and would like to try a 6-quart. Which do we think is the most long-lasting and reliable?
Besides a removable pot, what functions should one opt for?
I'll buck the trend here by offering slightly different advice. My slowcooker is a Crock-Pot brand circular (think it's 4.5qt) that was given to me as a gift. Its the model they carry at Target for $30. We've hooked it up to an electricity timer so that we can cook recipes that only call for 4 hours of cooking while we are away all day (the timer starts cooking 4 hours before we want to eat.)
Also, while I like pressure-cookers for their convienence, they don't serve the same function. With a crockpot I can have the meal cooking while I go work or hike or ski. With a pressure cooker I still have to make the meal (albeit much faster) but then either re-heat it when I get home or do all the cooking when I get home. They are both useful, but for different reasons.
My slowcooker works great, but here are some of the features I wish it had:
1) oval instead of round. The oval versions are far more useful than round ones, especially if you want to cook whole pork loins or chickens or pot roasts. With round you just have a lot of space around your meat, and not enough contact with the braising liquids.
2) a built-in timer. We "made-do" with a simple electric timer but versions with built-in timers can cook the food and then lower the temperature to hold it - useful since sometimes we run hours behind when we're off hiking. We've come home to a few meals where the meat was very dry because it cooked for 6 hours instead of 4.
3) Personally I'd prefer the 6qrt version, because I like to cook in batches and use the leftovers for lunches and dinners the following days. 4.5qt recipes usually make 6-8 servings. 6qt can make 10-12.
4) a "warm" setting in addition to "Low" nad "High". IME, "Low" is still too high to keep food hot for several hours (it overcooks everything), and I like the convienence of coming home and having food that is still ~140ºF and ready to serve. On my version "Low" seems to keep foods around 175ºF and "High" around 210ºF.
FWIW, ATK rated the Crock-Pot Touchscreen Slow Cooker as their best cooker, and the one they used in all their test recipes. It's a bit steep though ($99) - that's why I've continued to use my free-as-a-gift, $30 bare-bones variety.