Eades Appliance Technology's SousVide Supreme is a $429 water-bath-style cooker; it's also available in the UK for £350 and in Australia for AU$500, where it's branded as a Breville appliance, but otherwise identical. This type of sous vide machine features a large-capacity water reservoir that's best for cooking in bulk -- and not much else. The SousVide Supreme did manage to meet performance expectations, but it floundered as far as features go. Its direct competition, the $500 , which is roughly £466 on Amazon's UK site, didn't perform as well, but has a built-in vacuum sealer, a hose for easy water draining and water circulation tech.
Since performance is more of a priority, I'd recommend the SousVide Supreme over the Caso SV1000 -- if you're set on a water-bath cooker. If not, I'd skip this cumbersome sous vide category altogether and go with an immersion model, like the $200, instead.
The SousVide Supreme has a 2.6-gallon (10-liter) maximum water capacity; you can set the timer from 0 to 99 hours and the temperature from 86 to 210 degrees Fahrenheit (30 to 99 degrees Celsius). The whole thing is finished in stainless steel and weighs 13 pounds (5.9 kilograms).
The display is pretty minimal, with separate Set Temp and Timer buttons, plus and minus buttons, a Fahrenheit/Celsius button, a start button and a power button. There's also a small display screen that shows the current cooking temperature; you have to press the Set Timer button to view the remaining time during the cooking process, which is annoying. It also features LED indicator lights to let you know the status of the water (whether or not it's done preheating) and the timer (whether or not it's done cooking).
It looks fine overall, but certainly won't make any sort of kitchen design statement, aside from taking up quite a bit of space on your counter. I like that it has handles on the base unit and on the lid. The lid itself feels very flimsy, though, like it wouldn't do much to seal in heat.
But we used industrial-grade thermometers to test the water of the cooker and found that it maintained a very steady temperature throughout. This was particularly impressive since it doesn't have water circulation capabilities. Additionally, it did a good job of staying close to the target temperature. The Caso SousVide Center does have a built-in water circulator and maintained a similarly consistent temperature, but it struggled to hit its target temperature during cooking, which often translated to undercooked food.
The SousVide Supreme is also missing a built-in vacuum sealer and a detachable hose. These features aren't necessary for making a good sous vide meal, but they certainly improved ease-of-use on the Caso SousVide Center. I could drain the water without having to lift and tip over the entire unit into the sink -- I splashed a healthy amount of water on myself just trying to empty the SousVide Supreme.
You'll also have to buy a separate vacuum sealer if you don't already have one. There's a large assortment available on Amazon, and Eades Appliance Technology sells a handheld model for $75 (on sale now for just $23) and fancier varieties that top out at $999 (on sale for $749), but that's a definite inconvenience (you also aren't saving that much money compared with the Caso model at this point). Even so, the SousVide Supreme did surpass the Caso model in terms of performance.