Feelingstream adopted our ASR model specifically for customer service calls. This speech is well known as spontaneous speech (read about using speech to text for finding business-critical calls). We have achieved 85-90% of accuracy in various languages (for example, Finnish), which is a really high result.   There are always some mistakes when doing automatic transcriptions and we work hard to improve our model based on these issues, but already today the accuracy is enough for analysis and automation of processes.