I have had three maps done on different VAG cars. Al have been excellent, done bigish milages and never missed a beat. Each forum seems to have its favorites though each supplier will do the Vag group.
A3 1.9 130 Sport Quattro. Superchips map. 130 bhp to 170 ish and a good torque increase. 120k miles done by me. I wish I had never sold this car..
Fabia 1.9 Tdi Vrs. Shark remap (Skoda forum favorite) from a local to Edinburgh agent. Same engine as above, same gains. 90Kmiles
T5 175 SWB Kombi. Pendle Performance (T5 forum favorites)in Barnoswaldwick (where Hope are). 175 to 220 bhp and a great torque gain. Included a dpf delete, 1st in country for this. What a van.. loved this too
I always mapped them early, inside 5k miles so probably not really run in. All never failed, no slipping clutches or big oil consumption. Very reliable and all on long life variable oil changes and all serviced by independents from new, never VW.
Now driving a 2006 105bhp Touran, in grey. It feels like my life has ended but it does have the non dpf, simple cat only and not festooned with sensors, 1.9tdi. Its just gone through 170 kilometers.. but its duller than a dull thing that has some extra dullness added to make it dull. Plus, it feels like it wil be dull for a long time.
But, they do sell 175 bhp 4motion VW Caddy Cross in Viper Green here...