I am upgrading from my Masterbuilt smoker that i have used for 5 years. Leaning toward the Grilla Silverbac as it has 2 settings on the controller Pro (varies the temp so more smoke) and PID (holds temp less smoke) and the RecTeq 590. the usable space is about the same, the Silberbac comes with an upper rack RecTeq no price posted, but extra cost. Both only sell over the internet and drop ship. I see lots of postings on this forum about the 590, mostly positive, however the RecTeq forum has several NEGATIVE reviews. Not a lot of Negative reviews anywhere on the Silverbac. Tricked out with front shelf, and cover they are a few pennies cost difference. both free shipping. Looking for a tie breaking recommendation.