My daughter likes hers. I don't have one. I still use an old pressure cooker with a gauge on it. I use it several times a week. Works for me. For a SloCooker, I use a pot and a table top electric hot plate with a 2000 watt light dimmer I rigged several years ago. I use one of those laser type temp monitors to peek through the glass top to keep the inside temp at around 130 degrees as I cook a rib roast for around 10 hours. I singe the outside of the roast with a torch first before I put it in the pot. On the 11th hour, I turn the temp up to 160 Degrees. When I take the roast out I set it on a board and cover it with aluminum foil for around half hour.
El Yummo!
Old School!