I've been doing this for 4.5 years, and NEVER heard a peep about Barska.
Save your money! This machine will do no better than the BH.
IMO, your next step should be up to a machine with proportional audio. Binary audio is what you have now, it either beeps or doesn't beep. Proportional audio is louder, when closer to the target, and quieter when the target is further away. The variable tones will give you a lot more information that binary beeps.
A used AT Pro ($400 or so) would serve you well. It was my second machine after BH, and it worked well for me. All of the major manufacturers make this type of machine, I'm just familiar with AT Pro.
Best of luck to you sir!