I have a Hollis O2 reg that is just like the DR one. I used it for my 80% (MOD 30fsw, to he who asked) or O2 bottle when I first started tech diving.
Since then, I repurposed a pair of Dive Rite XT1/2 regs to be my deep and shallow deco regs.
The cheap reg was okay. But, I have found that I really like a compact reg with a swivel turret better for a deco reg. It gives me much neater hose routing for when the hose is stowed (or deployed, depending on how you set it up).
Also, having a 5th LP port on the bottom (of a swivel turret reg) makes it a viable and neatly routed option to use a deco bottle for double duty as a drysuit inflation bottle, too.