hornbyben Doram number 1 is good sanitation. If you’re not already using peroxy based cleaner and Star San I be would do that first.
This I have been doing for many years now. Used to use Starsan, and moved to Chemsan when the first became unavailable in the UK (and I understand is the same thing) - never had contamination so all good on this front.
hornbyben Is there anything that you don’t like or think needs improving?
Not really to be honest. I like what I get. If there is anything I want more I think it’s more hop aroma. The beers I like most are the ones that are have intoxicating nose even before I take a first sip. One thing I noticed you said is that light isn’t good for hoppy beers. My buckets are white plastic so don’t block the light. Bottles are mostly brown and kept in a closed garage. I am not sure if and how much this impacts aroma. I might need to use more for dry hopping (usually use about 50 grams per ~20 litre batch) or maybe try different hops (I am still experimenting, but tried Citra which were very nice, Cascade and Mosaic, which were also good). I am happy with the results, but I guess the best beers I had in pubs had more aroma than my homebrew, and if I could easily get more I would like that.
All grain - I would consider doing this if I was convinced that it would produce significant improvement in taste. But if it’s just to have more choice - I feel I am very far away from being bored of the choice I have with extracts. I also don’t drink enough to justify the move for the cheaper cost of ingredients.
Temp control - I was thinking of a fridge/inkbird solution, and might go for it in the future, but for the amount of brewing I do (usually around two batches a year), for now I just do it when the temperature is moderate (around 18-22C). Again, I am happy with the result I get, and not sure if and how much the ability to control the temperature to a single degree would translate to beer quality.
So for now, I am just sitting on the fence, enjoying what I have and not making any changes. But when I get the bug for an upgrade again - I still haven’t decided what is the best thing to try. :)