It is actually quite normal to doubt Leverkusen after seeing the way they performed against Qarabag. Yeah maybe they eliminated their opponent anyway but it was very difficult for them you know. Maybe they underestimated Qarabag and this caused them to have this much difficulty. I hope so otherwise their job against West Ham will be extra difficult in this phase. 
We will see how dedicated they are by the first leg. I really want to see Leverkusen in the finale playing against Liverpool honestly. It is like the best kind of a finale for a season like this.
It would be the nearest kind of a finale to a Champions League finale I assume.
Qarabag has become the biggest challenge for Leverkusen in the European league this season. They can really make things difficult for Leverkusen. It was a tough match. But I'm sure Leverkusen will be able to beat West Ham in the quarter-finals. What I admire about Leverkusen is their extraordinary winning mentality. They were able to beat Qarabag 3-2 in the second leg after losing 0-2 until the 72nd minute. They really have a good winning mentality. It ended dramatically after Leverkusen scored 2 goals in the 90+ minute. But I'm sure they will perform better when they play against West Ham in the quarter-finals.We will see how dedicated they are by the first leg. I really want to see Leverkusen in the finale playing against Liverpool honestly. It is like the best kind of a finale for a season like this.
It would be the nearest kind of a finale to a Champions League finale I assume.West Ham is an English league team that we know has a fast and aggressive style of play, Xabi must be able to minimize this by not giving West Ham the opportunity to develop their game. If this is done successfully by the Leverkusen players, I think they will be able to win both legs at once. However, this is just an analysis, of course it could be different when they play later.