This kit is great but you need to understand how long the chemicals last and if it's really worth the effort.
Once opened you can mix 500ml at a time which will do 7 films. I shoot 120 and have got 7 rolls from 1 mix with no drop off in quality.
This should give you 5 mixes so 45 rolls of film. But once opened the developer only lasts 12 weeks.
I've now done 3 mixes and will do the last 2 before the times up but for someone who shoots less film you need to understand the kit will only last 12 weeks.
To get value from it I have started to try XP2. Also I normally shoot expired colour film.