I tried this when it first came out but it didn't seem much better than PyCharm's usual suggestions (which are admittedly excellent among its IDE peers). I rarely to (maybe never?) saw it do any multi-line suggestions, let alone accurate ones. It was also very slow to suggest anything in the first place (I believe the network calls were slow iirc, at least compared to local/native autocomplete)
Maybe its progressed and I should try it again today.