Kits turn out OK no harm in making them shaort ie 20 ltr rather than 23 for a touch stronger. Advice would be give as much time as you can 2 weeks in the FV 2 weeks to carb up and MINIMUM 2 weeks to rest, I found the longer you left it to rest the better it gets.
Turbo cider is very good better than kit I think, plus you have loads of options on what you use supermarkets have loads of fruit juices avoid any with sweeteners or preservatives. Look for concentrated pure juice the sugar content will give it away if unsure