Hi Sgt! Personally, I wouldn’t use ihub L2, but I’d use the L2 of whatever platform you use for trading. I use TD and Think or swim. Fantastic L2 tool.
Think or Swim TOS from TDA had improved my penny game trading a lot since I moved from Schwab in Feb this year. Night and day improvement over Schwab. I still use Schwab for no commission penny trades but all my L2 and Charts support is TOS. TDA has free trading on major market plays but hits one with large fees for penny stocks.