Our Rome-Istanbul flight was rescheduled for 5 hours later than planned, then delayed by an hour and a half, then by another hour - our 10.30am flight became a 6pm flight, at last count. This would have caused us to miss our expensive connection back to Sydney from Istanbul.
The Blu-Express staff were unhelpful, unsympathetic, not knowledgeable at all and genuinely didn't care. After two hours they still couldn't find our luggage after we cancelled with them and booked another flight at our own expense (to get to our connection on time), and they refused to forward our luggage on. it was the guys at Turkish airlines who helped us clean up the mess Blu-Express had made, and told us how we could claim our luggage once we got back to Sydney.
Blu-Express is without question the most incompetent, unreliable, unprofessional transport service of any kind that I have dealt with in 10 years of regular travel both locally and internationally. I would not recommend them to anyone, ever.