Originally Posted by: M-Classics 
Hi Anders,
To start with, Märklin's decoders are not rubbish in my opinion. I have a lot of digital locomotives, all from Märklin, but they all work, including the models produced after the insolvency. I agree that other MRR manufacturers may use better decoders, and I know that Roco is good quality in general.
When I saw your post, I decided to check how much I would have to pay for steam engines made by other manufacturers. Brawa's S 2/6 would cost me 526 euros at the German Märklin dealer where I am a regular customer. I could get a Märklin S 2/6 for 416 with my VIP customer status at that shop, so if I wanted an S 2/6, I'd buy Märklin and save about 100 euros on one locomotive. Märklin also has a good customer service and honours its warranty. Interestingly, my dealer has very few Roco items left. Five years ago, Roco models were all over his shop, but now that company seems to have some issues with official dealers. For Märklin models, I can get a discount of 20-25 per cent.
Märklin has some issues with quality control, but if one of the three locomotives I ordered in 2014 has a small defect, I'll send it back and get a new one. (They haven't been delivered yet.) Last year I had to do that three times, but they fixed the problems for free. Maybe I'll be lucky this time!
I already have a large Märklin collection, and I used to play with Märklin as a child so I don't need Roco or Brawa, no matter how good they are. I just like Märklin a lot, even if I'm a bit disappointed by the quality of some newer models or by the cheap DC motors. In practice I avoid the problematic models, so I'm fine.
Best regards,
Mark
Well...i do and did had problems already with 3 difference Märklin/Trix locomotivs with mfx decoder and they do have some defaults.
The first was BR64 with mfx+.
After nine weeks waiting for repair,Märklin did sent me an new locomotive while the old still in Märklin company.
The second problem was diesel locomotive V100.10...it didn´t worked as it should and i was expecting to change to another same model,but there was also problems.
I did got money back.
Now the third problem is my Trix Bayern B VI with mfx decoder...it´s not working sometimes with the sounds.
I believe ESU is better than Märklin´s mfx decoder.
Yes...it´s difference in COSTs between Brawa,Roco,Märklin...etc,but it depends where they are producing.
Brawa do have more details on the locomotivs,but they do also have good service to replacement with details parts.
You can even order after details for yours locomotive from Brawa like Märklin via online shop.
So does with Roco.
Even shop store do offer cheaper prices of Brawas models.
They are not more expensive than Märklin do.
TS did asked if he wants(?) or shall avoid to buy Roco AC models.
I recommend TS to shop Roco AC models of today.
The older models is not recommend,but newer models does.
It´s up to TS choise by take an chance with an Roco model.
I did with Märklin´s diesel locomotive and it was crap!