Collins says that the transcriptions are ‘overwhelmingly accurate’, though with certain weaknesses in place names and compounds.
Afzelius’ transcription system largely follows that of Henry Sweet. He writes þ rather than θ for the voiceless dental fricative; the vowels are written as shown in this table.
Jones published a short review of Afzelius’s dictionary in Le Maître Phonétique (1910), criticizing it for not using IPA but praising its realistic representation of actual pronunciation. But the dictionary seems to have had very little impact outside Sweden.
In 1909, Jones was perhaps already pondering the possibility of producing something very much on the same lines as Afzelius’s effort – this was to emerge many years later as his English Pronouncing Dictionary. On its appearance in 1917, the EPD (as it is always known) was rightly hailed as a masterly achievement. It is nonetheless curious that amongst all the acknowledgements, sources and copious book lists that Jones includes in his preliminary material, one name is conspicuously absent – there is no mention of Afzelius.