Hi! Excellent question!
I do not own this model that you are specifically asking about but I do own several makes and models of other units. My smallest is a really cute mini good for warm dips, sauces or very small amounts. My largest are 18 qt Nesco oven roaster/slow cookers that even bake! All of my current units are stainless steel, though I did start out with the original crock pot that did not have the lift out dish many years ago. I have had a number of sizes and features through the years.
I actually have 2 of these Nesco 'giants' because of my needs; one has a teflon finish on the lift out pan and the other unit has an enameled lift out pan. I mostly use the teflon coated one with the 3-bay accessory pan for veggies.
I paid about $75 each for these 2 Nesco models and approximately another $25 for the 3-bay accessory; I bought all of these items on big sales at various times. For me, these 'babies' have been well worth every penny and then some! I would highly recommend them and they do come in a variety of sizes, should anyone be wondering. These 18 qt models are like having another whole oven!
In addition to what other Team members may be able to tell you, I suggest that you go to the All Clad website, Consumer Digest and/or Williams-Sonoma or other cooking specialty store(s) like Sur La Table, and see if anyone has posted a product review about the specific model you're interested in.
After considering all of this information, and perhaps this is obvious, but I'm trying to help - I gently suggest that you evaluate all of this model's features and if YOU believe they are worth the extra money. I do make this suggestion out of personal experience; I couldn't imagine paying full price for my Nesco and waited to get it on sale - I just didin't know how much I'd use such a large unit and felt a real sale price would take the 'sting' out of things if I didn't like it. As it turns out, I fell in love with it and kicked myself a number of times because I didn't get 2 when I finally did find that sale! With 3 teens and all of their friends, seems something is always cooking! ha ha I bought my 2d unit when I found it on sale again!
I hope I've helped (at least in part). I'm looking forward to hearing what everyone else has to say about this "hot little number" from All Clad!