As a rule of thumb the oldschool companies always suck less than the cheap companies who try to squeeze every penny out of you in every way. (Or have barely enough fuel so they need to call emergency landing once a month, or don't have enough personnel so they live-cancel late evening flights etc)
Now, I had my long list of issues with LH (it's the airline I fly the most because simply there's no other connection to places I want to go): missed connections, late bags on short connection, cancelled flights, late arrival etc. (By definition, airlines who do connections have higher risk of this than point-to-point cheap airlines.)
But every time I managed to get a workable solution to the issue, rebooking at no extra cost, money back quickly after a big delay etc. And no one ever looks whether my bags are not 1mm too big.
Meanwhile with a cheap airlines I had what you were explaining: once the website was not able to give me a boarding card. It was inactive or something. I arrive at the airport and show it to them live, they say sorry f.ck you, pay $$$ for printing boarding card at the airport. You should have called our hotline at $$$ per minute.
If something happens then they shut down service desk and don't help you at all.
Find your own solution and then they ignore you if you want hotel/travel costs paid back.
I'm still waiting ~4000 eur from them. But only one human reply that they forwarded claim to another department. 3 months and counting...
And I resend all my claims weekly and hope for the best.
Phone support is even worse. 2 hours on the phone and then they understand that indeed my flight was cancelled 3 months ago...
I typically fly LH economy, though have had a few upgrades (meaningless in Europe) over the years. Their business class is not as good as Singapore or Virgin, or modern United, but better than BA, and typically fine.
I don’t buy tickets through LH, only through United, who answer the phone (to me) with a knowledgeable human in under 1 minute as someone with top status.
Nice try. I've been flying a lot in the last 10+ years.
But yes. I have flown with LH enough. I've flown with them on their own tickets and UA award tickets. They will act like shit, and they will defend each other there at all costs. UA looks like an angel in comparison, even with the Dao punch out. Heck when, you offer to help them offload 2 pax and help with their equipment swap (as this LH leg is a connection and not the final).. they're respond with "WHO TOLD YOU THIS!".
What happens on an flat tire situation: Many times UA will try to help you out, even if it's a mixed ticket with US Airways.
What happens with LH: You will be repriced and expected to pay, don't expect for the agent to communicate accurately. Their behavior is that this is your fault and will be puzzled why you did this "intentionally". (That stance also goes to their own equipment downgrades, WX problems, staff issues on their side, not liking their own hostile/aggressive staff, or even if you want to fulfill all of the requirements of bringing your dog)
That is their stance, and their willful ignorance of the business. This is a "full service carrier" who acts worse than a LCC.
Airline stacking from what I've flown with:
Best EK, UA, TK, TP, KLM, US
Good: WN, BA, AM, CP, AA, LATAM, Alaska
Questionable but good: SAS, Agean/Olympia, AR, Insel
Garbage: DL, LH, EasyJet
It is one of the worst ones now.