Buffett-style criteria:

1. A strong economic franchise,

2. Managers of integrity and talent,

3. Excellent accounting numbers, and

4. A reasonable price.

If you want to get even deeper understanding there is much more on this in my books The Financial Times Guide to Value Investing, The Great Investors, The Deals of Warren Buffett Volume 1 and The Deals of Warren Buffett Volume 2

Below are the results of this strategy.

I present the returns after taking the hit on broker costs, stamp duty and bid/offer spread.
 
Company         Purchase date         Purchase price        Divs to 4 Feb 2021        Price 4 Feb 2021             Return to 4 Feb 2021

 Dewhurst             9.4.14                        £3.18                             70.5p                Sold February 2020 £7.217                    149%

MS International  9.10.19                      £1.723                             3.5p                                   £1.60                                          -4%

Character     20.1.20 & 5.6.20              £2.811                              15p                                    £4.20                                          55%

Dewhurst           11.11.20                        £5.94                              0                                        £7.00                                           18%

MS International  16.12.20                     £1.292                             0                                        £1.60                                          24%

AVERAGE                                                                                                                                                                                        48%
(I bought some more of Dewhurst in June 2014 at £3.11, December 2014 at £3.75, November 2017 at £5.46, February 2019 at £5.54 and April 2019 at £5.64.These were sold Feb 2020).
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