One of the best kits IMO. If I was brewing it again I would go with one of the following....
Euro Lager Kit
500g Extra Light DME
1kg Brewing sugar
25g Saaz (or hop of choice)
Boil 6L of water
Take off the heat, add the DME, brewing sugar and lager kit
Bring back to the boil then add the Saaz for 10 minutes
Dump the lot(including the hops) into the FV and top up with water to 23L
Bring temp down to approx 25 degrees and then pitch the yeast straight in.
Place in the brew fridge set at 20 degrees for 24 hours
Lower temp to 15 degrees
Ferment for 3 weeks
Transfer to secondary (leave yeast/hops/etc behind)
Slowly raise the temp to 20 degrees (over 24 hours, 2 degrees every 10 hours)
Allow to rest for 48 hours
Lower temperature by 5 degrees every day until set at 0 degC (4 days)
Lager at 0 degrees for 4 weeks
Raise temp to 10 degrees over 2 days (5 degrees per day)
Bottle/Keg using your preferred method. I would recommend 3g per bottle (if bottling) with this kit as it has a decent amount of body.
Allow a full 4 weeks in the bottle at approx 15-20 degrees (this is necessary as a lot of yeast will have fallen out of suspension)
Allow a full 2 weeks in the bottle < 5 degC
Enjoy probably one of the best kit lagers available
Method 2:
Exactly the same as above only don't bother with the extra DME and just brew to 20L