Traveled twice in 2 months. Went to Chittagong from Bangkok in December & returned in January. I have flown with the airline in the domestic routes couple of times in the past. First time I have flown in an international route due to the fact that other than Thai Smile only Regent operates direct flights to CGP (Chittagong) from Bangkok. Flight to Chittagong was pretty decent. There was a delay at the runway, only because there were too many flights waiting to take-off. The 737-700 aircraft was in a pretty good condition from it's outlook. Inside it was somewhat hot. The aircon was unable to provide enough coolness. People were sweating on their seat as the plane waited in the queue to take-off. However, the cabin crew assured us that the aircon will be fine as soon we get airborne! Seats were pretty comfy but not much legroom. You can't expect to have ample legroom in a 737. Liked the interior. Just requires some attention to cleanliness but nothing big.
Take-off and landing was smooth. Traditional Bangladeshi food was provided. One thing I have noticed in my both flights, the male flight attendants do not smile at all. Especially for one them I felt like he hates his job! This obviously gave me a bad impression about their cabin service. Out of 4 cabin crew I came to see in my both flights, only one smiled and tried to give a good service. It's not just me, even my wife felt the same. No inflight entertainment. I wouldn't mind as this was just about 2 hours flight.
Return flight experience was also pretty much same except the ground service we received is below standard. We had to walk to the Tarmac carrying our hand luggage and there were no lifts in Shah Amanat International Airport to go down to the tarmac from the waiting area at the 1st floor. We had to take the stairs and we had an old lady walking in front us who was struggling to walk down the stair case. No help offered to her from Regent whatsoever. As it was a narrow staircase it took her good 5 minutes to walk down the staircase and people were lining behind her. Felt sorry for her trouble. Same aircon problem in the return flight and food scrap found in the fold up meal tray. To our surprise "Nasi Goreng" was provided in meal! While landing at Bangkok, seems like the pilot was in rush to land. Took several sharp turns and the landing was hard. I wouldn't mind flying with Regent again but the attitude of the cabin crew does gives a negative impression. If you want to compete with the other airlines in the region you must improve your cabin service and bring the international standard. I would recommend to fly with Regent but don't expect too much as this is a small airline still trying to strengthen it's feet in the industry.