>>120
Tough to say. I actually did get into Precure because of wanting more to watch after Doremi, but as a franchise, Doremi gets to go where Precure can't regarding how it handles various subjects.

I would definitely suggest Heartcatch Precure if you're coming from Doremi and want to get into the series (Umakoshi did designs for it, and I feel like it comes a lot closer to how Ojamajo Doremi handles things than the rest of the franchise), but as a whole, it's a different, fluffier, more actiony kettle of fish, and maybe Heartcatch might give you expectations for the rest of the series that just aren't true. ┐(ﾟ～ﾟ)┌

If you aren't expecting "basically more Doremi", you'll probably have fun with the series.