I used this formation in my Barcelona save for two seasons. First sesaon I had Ansu Fati and Griezmann up front, with Messi behind them as an Advanced Playmaker. That season Ansu scored 60+ goals, won the Balon D'Or and became arguably the best striker in the world. I finished that season unbeaten in the league, won the cup but unluckily lost to Man United in the CL Semi-Final 5-4 on aggregate. This team has not failed to score in a single game in over two years running.
After that season, Messi retired and Antione was 32 years old, so I sold him and brought in Fabio SIlva. The season that followed was truly sensational. Fabio Silva broke all sorts of records, his striker partner Fati having a great season with him.
I played the first half of the season with an attacking Libero and found that the team conceded a lot of goals but scored a lot more so I wasn't concerned. However my board wasn't pleased with the amount of conceded goals so I had to tame the Libero and play him with a support duty. This really helped the team keep a lot more clean sheets.
This tactic produced some fantastic results, including a 6-0 victory against Atletico Madrid in the league, a couple of 8-0 victories in the league, a remarkable 10-2 victory against Valladolid in the Spanish Cup with Joao Pedro scoring 6 goals in that game and a spectacular 6-0 humbling of Liverpool at the Nou Camp in the Champions League. The team scored a record-breaking 163 goals in the league.
Performance in the league
This tactic is really fun to watch because it has a very fluid shape in a tiki-take style that leads to some beautiful one-touch passing goals. I'd suggest using this tactic when you have 3 solid center backs because it's vital they stop teams from scoring on the counter.