I like how easy it was to set up, configure etc for our needs - we needed something quick/easy but also with some flexibility in terms of what could be done within BizTalk orchestration / custom code (we do not have any).
The price point makes this an attractive option over other vendors offerings as well! Nothing really comes across here so far which would make me dislike using them again if i were starting from scratch today. We are solving multiple problems at once by combining BI & Orchestrations into one system allowing us more control than just having separate systems doing their own thing.