Information
I was originally booked on LUX-LYS-MRS (LYS-MRS may follow in a part II). While being driven to the airport, I noticed that the evening flight from LYS the night before had been (as was the case for flights on previous and subsequent days). By the time I arrived at the airport, I was properly fed up. While A5 had been aware of this by 8 pm the day before my flight, they seemingly couldn't bothered to notify customers until 11:30 pm, where I was sleeping (given the early departure). Anyway, let's go step-by-step through my flight experience.
Ground experience at LUX
I proceeded straight to the check-in desk where staff was unfortunately unable to do anything. As they were Luxair ground handling staff they blamed A5 and just told me to go to the gate. (Great! Going to a gate waiting for the boarding of a cancelled flight *eye roll*). I walked to security, where I was stopped as staff scanned the mobile boarding pass and they refused me entry as the flight was cancelled. Back to the check-in desk. I received the same boarding pass on paper and was told to try again. Refused again. At this stage, I was properly angry, but eventually the managed to let me go airside.
Once airside, I stayed close to the gate as I had no time schedule. Around 7:30 am gate agents came around and started rebooking manually every passenger. Eventually we boarded an ERJ-145 that had been diverted from Brussels to pick us up. By 8:00 am, all of us were manually rebooked on the new BRU-LUX-LYS flight and we were set to go. You could see that the passengers from BRU weren't too happy of making a stop in LUX.
The ground experience in LUX was properly bad and confirms past bad experiences regarding IRROPS.
The flight
Thankfully the flight experience was somewhat better. The ATR-42 was swapped for a much more comfortable ERJ-145 and I had been assigned an individual seat
View of terminal A (the only terminal in LUX). A terminal B (initially connected to the old terminal) will reopen in 2017 after being connected to the current terminal

We taxied past the cargo center, home of Cargolux, to runway 24.

The Embraer was quickly in the air and the onboard service for this hop begun soon after. The ERJ-145 was quite comfortable for such a short flight and the crew was friendly and competent but by no means extraordinary which is to be expected in the LCC business.
The catering. It consisted of a glass of water and two Müsli-Abricot bars. Nothing exceptionally, but I've had worse

The weather was quite poor and the climb pretty much resembled to this

At cruising altitude

Approach to LYS

In LYS

Ground experience at LYS
After landing, the ERJ-145 taxied to gate S31 and a bus took as to border control, where all of us (everyone was connecting) along with passengers from other A5 flights received priority. A5 ground staff guided us through a secured corridor to the airside part of the terminal.
I made it to the S pier just in time. Thankfully the connecting flight to MRS was delayed by 30 minutes as well allowing me to catch that flight. Given that I ran through the terminal, I was unable to check any services or shops out. The general impression I got from running past gates was that A5 flight were all somewhat chaotic and/or delayed despite seemingly being a normal day for operations (average weather; no strikes; etc.)
Hi!
Too bad you had this experience. Well, that's the world of air travel. You never know when something will affect your flight schedule. Timely notification from the airline would have been great, though. Been there. Twice last year, actually.
It's great that you could make it to your connection on time!
LUX looks like a nice little airport. Great photos in spite of the bad weather!
Thanks for sharing! ^^
Frankly I don't mind IRROPS, but this clearly seemed to be "planned" and they simply cancelled the inbound flight due to low load factors. They did the same days before and after my flight. A couple of colleagues suffered the same experience in July and August 2016.
It's a pity because I was excited about giving A5 a try. The crew was without fault. Unfortunately I'm very reluctant to fly the route again as the organisation still seems to be very chaotic. Such a shame ...