Provided we will not need to add external data feeds, i consider $40 to be a cheap option for what you get. But like
@Sammy800 mentioned above, there is currently no iceberg and perhaps they will have two packages/prices like Bookmap already offers now with Global & Global+ where only the latter has iceberg.
For heatmap/liquidity levels i think Bookmap is still the best option out there. I´ve tried Sierra which also have a heatmap and it works similar but i still think i prefer BM for this feature alone.
But Sierra is a much better option for overall orderflow analysis. They have everything, DOM, Market Profile, Volume Profile and the one i use the most, Footprints/Number Bars.
Personally going forward, i will prob use both Sierra & Bookmap provided the $40 pricing model will be applied with no extra data feed costs.
But i´m still learning Sierra which has TONS of customization options so i might only use Sierra for everything if i can make the Heatmap work in the same way as BM.